Ein deutsches Requiem (Brahms) | baritone soloist Aksel Rykkvin (15y) | Orkesterkollektivet

"Ein deutsches Requiem" (1868) by Johannes Brahms (1833-97)
Excerpts from movements 3 and 6
Baritone soloist: Aksel Rykkvin (15 years)
Orchestra: Orkesterkollektivet
Conductor: Trond Husebø
Choirs: Con Spirito and Nordstrand kirkekor
Recorded live in concert in Nordstrand Church, Norway, Oct 28th 2018. More highlights from the concert here: • Brahms: Ein deutsches ...
www.orkesterko...
www.conspirito.no
Stream or buy the critically acclaimed boy soprano albums with Aksel Rykkvin:
hyperurl.co/Lig... (2018)
hyperurl.co/Aks... (2016)
Subscribe to Aksel's KZbin Channel:
radi.al/AkselYo...
www.akselrykkv...
/ akselmusic
/ akselmusic
/ akselmusic

[@user-jc7xn1xf2h]

What an incredible dramatic baritone. Aksel Rykkvin is a true gift to the world!

[@artlovkar]

Watching you transition from a soprano to a baritone - what a beautiful voice. A heavenly gift!

[@yourenglishclasses]

treble please... he is a male

[@58629799]

Difficult piece of music and you mastered it really excellently. Well done, Aksel! It's a great pleasure to hear you sing. Looking forward to the future.

[@AkselRykkvin]

Thank you!

[@peterbaettig4837]

Ist sehr anspruchsvoll für Sänger, Musiker und auch Zuhörer. Grosses Lob an alle und danke für die Veröffentlichung.

[@AkselRykkvin]

Danke schön!

[@michaelmitchell5380]

Aksel will be one of the world's future greats! It is so delightful to watch him grow and progress to give unique expression to the world's great music, both past and that yet to be. Thank you for the joy you have, and will, bring to the world. God bless.

[@albimoretto]

Dear Aksel, nothing has changed since you were a boy soprano... You have only added to the purity and expressivity of your voice a warmth and a depth I find really moving! Keep up the good work and good luck for your bright musical future!

[@AkselRykkvin]

That’s wonderful! I don’t miss being a soprano when I hear such things :)

[@influencer8757]

@@AkselRykkvin I do not agree, for sure your voice is warm now, even it is very pleasant to listen to. ... and you had an extreme metallic (female) soprano voice, and now you all please tell me what is a more CLEAR voice, metallic soprano ....... or ...... warm voice of a man (baritone)? I challenge you! @Alberto M.

[@amyevans9551]

Well done Aksel- your voice just keeps getting better and better😊👏🏻👏🏻

[@AkselRykkvin]

It was a challenge to sing this so soon after my voice change, but what a rush!

[@amyevans9551]

You’re doing extremely well though! Greetings from Wales 🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿

[@influencer8757]

his voice was of course a total different one, _it was not a bad voice_

[@Kruzifan]

God is donating a beautiful treble voice to a little boy temporarily only. That - at least for me - is so sadly ! Nevertheless I wish you a sucessfull career as an opera singer, dear Axsel....:) Of course the Vienna Boys here almost all hope for such a career: kzbin.info/www/bejne/qHvJY5WKqcR4jqc

[@nudnikjeff]

I could not agree more. What a beautiful voice to go with your angelic looks. Great future ahead!

[@quaver1239]

Beautiful, Aksel! Your voice is gorgeous and warm. Thank you for sharing this with us.

[@AkselRykkvin]

This work suited me better than I thought it would when I first heard it :)

[@blackdiamondstoneofwisdom5258]

Ich bin ehrlich erstaunt über den Wandel. Gerade noch ein Junge, nun ein Mann mit einer warmen Stimme. Danke junger Freund. Bitte mehr.

[@AkselRykkvin]

Danke!

[@Frederik020]

Ja, er hat nun eine andere Stimme. Manchmal denke ich: Vorher die Stimme eines Engels, nun eine beinahe göttliche... Hoffentlich bekommt dem genialen und überaus sympathischen jungen Mann der Ruhm. Ich würde mich sehr über ein positives Beispiel einer inzwischen unendlich bekloppten Welt - und damit für Aksel (meinem Namensvetter) selber - freuen!!

[@simi64]

Sehr anspruchsvoll und sehr gut gemeistert. Eine interessante Stimme mit viel Potential. Ich bin weiter gespannt und begeistert. Alles Gute und viel Erfolg für Sie.

[@faitheternal3015]

Just look at our musical child prodigy: you have grown into a very fine young man! Beautiful, expressive singing as aways. Thank you for continuing to share. We look forward to enjoying your rich, unfolding range. Keep singing--the world loves listening. Cheers from Canada!

[@AkselRykkvin]

Thank you so much!

[@eleonorepibot4764]

Toujours en admiration!! Bravo surtout pour des chants si magnifiques! God bless you!

[@Hary197629]

Замечательное выступление. Высокопрофессиональное, слаженное с оркестром и хором. Браво!

[@AkselRykkvin]

Great, thank you for that!

[@gllhouk]

This music brought joy to my soul tonight! Thanks Aksel!

[@francoisegregyi233]

Excellent rendition Aksel! I wish you all the best for your musical career!

[@rafaelmarra7930]

Always singing my favorite pieces, since the times you had a soprano voice (Let the bright seraphim, Ombra mai fu etc.). Thank you so much! Greetings from Brazil.

[@AkselRykkvin]

Glad you liked it, this requiem is such an amazing piece of music :)

[@ferrisburgh802]

Really great. Never a month goes by without listening to this Brahms.

[@axelcanu9012]

Your voice is absolutely wonderful! Bravo Aksel it's amazing! :-)

[@eleonorepibot4764]

Toujours bien habillé! Quel plaisir de te voir Aksel!

[@federicofaido7215]

Very good! The future is in your hands! - Congratulations also to the choir, orchestra and conductor!

[@AkselRykkvin]

Thank you! Everyone was very happy with this concert :) The audience too, unfortunately there were not enough space for all of them.

[@yourenglishclasses]

@@AkselRykkvin Yes ... there seemed to be more performers than audience. could have done with a bigger venue

[@evelynguddat8074]

Wonderful! Such richness, leaving behind what was beautiful as soprano now developing in strength and depth ... we watch your grow ... 👏👏👏👏 (watching from the U.K. 🇬🇧)

[@peterschmitz8364]

eine der schönsten stimmen die ich gehört habe

[@Gitti47]

Großartiges Talent!!!👌👍💕

[@jui137]

Wunderbar gesungen! Brahms wäre sehr glücklich. Dankeschön.

[@amp9672]

Il chante comme un prince 👑 ♥️

[@pietermoonen]

Young men, you are a wonder! Thanks for your kindness!

[@epincion]

Bravo! Beautifully sung. The future is bright!

[@AkselRykkvin]

Thank you, I hope so!

[@christianroberts2975]

Amazing ... your voice is maturing wonderfully!

[@orangejuiceman]

You have an amzing voice. Excellent work

[@AkselRykkvin]

Thanks!

[@yjlvidal1084]

Décidemment oui ! Aksel, vous avez un don et je suis sûr que vous êtes un grand travailleur. Les deux facteurs réunis donnent un résultat exceptionnel et vous nous le présentez avec brio ! Je suis un de vos fidèles admirateurs. Bravo !

[@AkselRykkvin]

Merci beaucoup! There is nothing else I would rather do than be a singer, so I try to make the most of it, and most of the time I am having fun doing it :)

[@schmittbertrand3700]

it's so nice to assist to the birth of a new baritone !!! Great life to you my dear !

[@lolacheca7183]

¡Maravilloso Aksel! Una obra tan grande como el Requiem alemán, merece ser cantada por una voz tan hermosa como la tuya. Un baritono perfecto. Felicitaciones a todos y especialmente para ti.

[@AkselRykkvin]

Gracias! It was a big challenge, but I think I managed.

[@lenanona-p1x]

I love the direction your voice is going!

[@imALLears1]

Such a delight to hear you as you mature into your adult voice - the artistry and beauty are already there. Hope the change is being kind to you - it's kind to us!

[@AkselRykkvin]

I really enjoy singing with my new voice. Just as motivated as before :)

[@TeamSintti]

🎼One of my favorite composers, one of my favorite works by the composer… and as it seems, one of my future favorite baritones - you´re advancing nicely !🎶 Good job, Aksel - Thank You & greetings from Finland ❗

[@AkselRykkvin]

Thank you so much!

[@quaver1239]

Other people have written “awesome.”. That’s a perfect word for this entire collaboration of orchestra, choir and you. Brahms is very difficult, and your voice soars in this Requiem. You are a wondrous musician.

[@AkselRykkvin]

Thank you so much!

[@pietermoonen]

Aksel, uw bariton stem verbetert, proficiat voor het harde werk! Flink zo.....U blijft schitterend mooi!!!

[@AkselRykkvin]

Thank you, continuing to work hard :)

[@classicalguitareterna]

Wonderful as always! An incredibly new and beautiful voice and a very nice performance!

[@AkselRykkvin]

Thank you so much, I think it went well.

[@classicalguitareterna]

@@AkselRykkvin It really did!

[@mnalbayrak]

It is magnificent Aksel.

[@annevendy6415]

SPLENDID, Aksel! Mr. Lewis is right...you ARE a singer!!

[@AkselRykkvin]

I remember he said that, great compliment :)

[@camille1068]

Aksel Rykkvin, fein young man, your baritone elocutions just keep getting deeper and stronger. What a beautiful gift to us Californians, particularly struggling at this time with smoke from the wildfires. Hugs xx

[@AkselRykkvin]

Thank youo. I saw the fires on the news here in Norway, just horrible. I hope it ends soon!

[@kleintheresienhilfswerk_KTHW]

Danke!

[@joelmartinez6115]

He has a great voice, I hope to be able to attend a concert in the future.

[@robertolsen9327]

I was wondering just this week if you had any new videos of your singing, and then I stumbled on this one. I am constantly amazed at the smooth transition of your voice. Your intonation is perfect, and, regardless of what volume you sing, your tone is beautiful. I wait now for a CD with your baritone voice. What a treasure to have all these recordings from the different ages in your life. Keep them coming. God bless you, Aksel.

[@AkselRykkvin]

Thank you for this, I am certainly thankful for having had such an easy transition! Happy to do concerts and opera performances for now, and KZbin videos. A CD is such a big project that it’s probably better to develop my voice a bit more first.

[@robertolsen9327]

Well said, Aksel. I appreciate your desire to develop your voice before taking on the challenge of a CD. That's humility.

[@corinneyates7922]

I wonder if one day like Aled Jones here in the UK, you might find a piece you sang as a soprano where you might accompany your younger voice with your new one. I'm sure that would be special.

[@andrewgjennings]

Nicely done Aksel, great work!

[@paulosoares4273]

Meu Deus . Sensibilidade , tecido sútil da alma . Aksel canta , canta e encanta . Deus abençoe seus dias . Seu Arauto do Rei . 🙏🙏🙏🙏👏👏👏👏

[@AkselRykkvin]

Moitas grazas!

[@charlesmorgan8440]

Wow, fabulous Aksel! Perfect for your stage of development, combining your usual emotional range and excellent German, with a lovely, rounded, sound. The heft is coming but so much more to come. I am so happy for you and thank you so much for posting this! (just spotted the gorgeous hanging sailing ship model too on second viewing!)

[@AkselRykkvin]

Thank you! Loved to get this challenge right now, and happy that I could make it work withhout being a "heavy" baritone :)

[@charlesmorgan8440]

@@AkselRykkvin Exactly so, never try to be what you are not. One to sing perhaps - a gorgeous song of Benjamin Britten's sung by my favourite non-heavy baritone, Roderick Williams (worth seeking out for other ideas). No great heft required, but oh so lyrical - kzbin.info/www/bejne/jaG2g2hsjNZmnJo

[@larakhv6616]

Ласкает слух эта прекрасная, величественная музыка с этим чудом - солистом. Бог ему в помощь!

[@Alexander_Goosev]

Да. Норвежцы решили второй раз изумить музыкальный мир после Эдварда Грига.

[@nataliapushkareva8016]

Да, Аксель это чудо ❤️

[@Alexander_Goosev]

@@nataliapushkareva8016 Да, Наталья. Написал бы больше- боюсь сглазить!🙏

[@nataliapushkareva8016]

@@Alexander_Goosev точно!)

[@WhiteTiger333]

Wow! What joy to find this video waiting in my subscription list! A packed house. The orchestra and chorus appear to be as many people as the audience. :) And, Aksel, your voice certainly sounds like it is strengthening in resonance and depth of expression. Beautiful to hear your continued passion and discipline for singing bear such lovely new results. Thank you!

[@AkselRykkvin]

Thank you, it was special for me to be able to do this, and It was also a very popular event in our part of town. The church could only take 400 seats because there were so many musicians and choristers, and about a 100 people didn't get in.

[@sabineschett6277]

Danke

[@franciscomerino8544]

Wow. Really nice work, Aksel. Congratulations

[@AkselRykkvin]

Thanks!

[@SopranoLili]

Bravo Aksel. Looking forward to following your career!

[@marieagnethepihl8971]

Vakkert som alltid!

[@diegolythgoe7902]

"Lord, teach me That I must have an end, And my life has a purpose, and I must accept this." ….most appropriate.

[@AnjaHuebel1]

That was amazing! Thank you so much, and please carry on singing!

[@AkselRykkvin]

Thank you, carrying on for sure, I am singing just as much as before :)

[@chrisedmunds9272]

Thus far his vocal transition is remarkable. I hope his voice is being well cared for. This is critical at his age.

[@Maltravers2011]

I can see I shall be able to give Aksel CDs at Christmas for many years to come. Congratulations on an excellent performance!

[@AkselRykkvin]

Thanks! Soprano CDs for now :)

[@Maltravers2011]

@@AkselRykkvin why, have you had an operation? 😂🤣

[@23Hope]

Unverändert schöner Gesang. Danke danke. Singst Du auch zu Weihnachten?? Bitte. Bleibe Gott treu er steht Dir immer zur Seite lieber Axel. Du bist wertvoll vor Gott so wie so. Danke lieber Axel 🎼🎸🎷🙏🕊️

[@influencer8757]

_er ist nicht unverändert_

[@AkselRykkvin]

Thank you, yes I sing some concerts and services with Oslo Cathedral Boys' Choir, and I will also sing as a soloist at a Christmas concert together with some other artists facebook.com/events/1813729758709384/

[@Frederik020]

@@influencer8757 - er ist zwar nicht unverändert, aber unverändert schön. Es ist der absolute Wahnsinn!!!

[@faustobettoni3119]

Great to hear you voice getting better every time. I really enjoyed this performance.... bravo as usual

[@AkselRykkvin]

Good!

[@erikascolovin6312]

Die Aufrufe sind schon 6100 in 6 Tagen. Das hast Du Dir verdient, Aksel. Wunderbar singst Du die schöne Arie schon mit 15 Jahren, prima.

[@peterschmitz8364]

in wunder an stimme

[@corinneyates7922]

I am no expert but already I can hear the richness in your voice is increasing. Wonderful. Best of your new voice so far for me. X

[@AkselRykkvin]

So happy to hear that! Needed to bring out as much power as I could here :)

[@joshuaaranguren1020]

Sounds really awesome love it 😃👏

[@AkselRykkvin]

Great, thanks for that!

[@harryliangviolin9003]

Nice! Congratulations 🎊🍾🎉🎈!!!

[@AkselRykkvin]

Thanks!

[@marioribeirodeazevedoneto311]

Tak gratulerer! Viva!

[@DavidBrowningBYD]

Ive only seen one or two videos. Well done! I hope to hear how this young man’s singing and artistry develop as he reaches adulthood.

[@AkselRykkvin]

Thanks!

[@luismunozpachon9102]

que maravilla,felicidades por los que pudieron ver y escuchar tan maravillosa interpretación,,

[@AkselRykkvin]

Gracias!

[@user-yj2iu5ik5h]

Поздравления!!!!БРАВО ,АКСЕЛ!!!! БЛАГОДАРЯ ,за прекрасната трактовка!

[@AkselRykkvin]

You are welcome, thank you!

[@samuelstoner5651]

Bless your heart.

[@ellisonsimon]

What an absolute joy to listen to. The whole production is fantastic, and you display really lovely facets of your new voice and plenty of power. Can’t wait to see further videos!

[@AkselRykkvin]

Very happy you liked my singing and the whole production, too! It was a fantastic project, and it all happened in such a short time.

[@timofreeman4574]

To receive such an impressive opportunity at such a young age and still-developing voice is such an honor, and apparently speaks to your past artistic triumphs and work ethic. For such a good ensemble to trust such a young man with the role of a wise and world-weary man asking the Creator humanity's most profound existential questions speaks to your prestige among this audience and director. I'm unfamiliar with your past work, and apparently I need to look into your recordings!

[@analuisajohnson2083]

Heavenly ❤️🙏🏻

[@lieselottekuhl8287]

Eine sehr schöne Stimme. Ich kenne ihn noch, als er Sopran gesungen hat.

[@AkselRykkvin]

Danke!

[@erikascolovin6312]

Wunderbar anzuhören.

[@Frederik020]

Der junge Mann hat eine absolute Ausnahmestimme! Früher und - Gott sei Dank - auch jetzt als Bariton immer noch. Ich habe selten so etwas Schönes gehört... Gut, daß es KZbin gibt!

[@pakabe8774]

You sing a lot in german, don't know if you understand german in general, but you are so beautiful and have such an amazing voice... and at least you sing some of my alltime favorites. I just sang "Herr, lehre doch mich, dass ein Ende mit mir haben muss und mein Leben ein Ziel hat..." while showering in the morning. Wished could do it like you. Sorrow took all my joy away. Now rare tears are the only joy in my life und this made me cry. Sorry for my negative comment, but you are so great!

[@massimilianomori8261]

Bravo Aksel! Spero un giorno di poterti ascoltare dal vivo! Magari a Roma! Voce splendida in tutto il registro! Ciao. Max.

[@AkselRykkvin]

I was in Rome a couple of years ago on holiday, and it was one of the most interesting places I ever visited. Hope to go there some time to sing!

[@massimilianomori8261]

@@AkselRykkvin ok! Caro Aksel, speriamo presto, ciao e auguri per tutto! Max.

[@reaumurg423]

Wow! Your pronunciation is outstanding! And the whole performance is just stunning! Wow! Utrolig bra!

[@AkselRykkvin]

Thanks, I really enjoy singing in German at the moment, trying to get all the details right :)

[@influencer8757]

_thank you that the French tell about German pronunciation_

[@reaumurg423]

@@influencer8757 I'm "terribly sorry" to "disappoint" you, but I am German... Namen sind Schall und Rauch, wie man so schön sagt... And additionally, I sing classical music myself and know a lot about "singing German" - so don't judge a book by its cover...

[@haccuk]

Really good Aksel. It sounds like a very difficult piece to me but I think you have mastered it. It is amazing how you have transformed so easily into a baritone, when so many don't progress after their voice changes. When I say transformed so easily, that is not fair. I am sure that you have put in many hours and lots of hard work. Well done

[@AkselRykkvin]

The most difficult thing was rhytm, to be in sync with everything else happening in the music. I feel lucky with my voice transition, but it has also probably helped that I have just worked steadily in the same way after my voice changed.

[@ekofisk24j]

Wow! Your range is developing SO well - really 'ringing' on the higher notes. In such a short time. This must have been a very challenging piece. As someone else below has said - "awesome". You are going to be one of the greats!

[@AkselRykkvin]

Thank you so much! Will work as hard as I can :)

[@miquevandijk7463]

Aksel Rykkvin we all can see and hear that! Thank you for bringing us so much pleasure and happy feelings.

[@leamendes9409]

Hej Aksel! Amazing how you pursue the Greek-Italian and Iberian schools with Mozart and German and not alone cutures. 4 thumbs Up and Onwards if you pease !

[@leamendes9409]

cuturally enriching+ pleasurable to make, talk and hear . Takk di :)

[@leamendes9409]

Cult fact of !

[@banshanlyngdoh7545]

Aksel..... God has chosen you to fill the void left behind by Pavarotti. How you have achieved through the years, has been amazing. As you move on forward.....my best wishes are with you!.👍👍

[@AkselRykkvin]

That's a crazy nice compliment, thank you so much :)

[@urmorph]

@@AkselRykkvin More like the void left by Hvorostovsky. But every human is sui generis, unique, incomparable. Keep on being Aksel Rykkvin; you're doing a great job of it so far. Thank you for sharing your progress.

[@ThomasHetschold2]

What a wonderful piece and an excellent performance of you! Looking forward to hearing you live. I will hear the piece tomorrow in Dresden with Michael Nagy as Baritone. I know him from Frankfurt Opera and he is a brilliant singer. It is just a matter of time you will sing on the same level. Considering your enormous progress it will be sooner than later. Please continue on that path!

[@AkselRykkvin]

Thank you for that. Hope you enjoyed the concert in Dresden. I didn't know this requiem from before, and I am so glad I know it now. About the future, I try not to rush and take things slow. But when challenges like these come along, I just have to go for it :)

[@ThomasHetschold2]

Aksel Rykkvin The concert was amazing. I was lucky enough to have a short chat with Mr. Nagy and he also said the concert was wonderful, he especially pointed out the performance of the boys choir in Dresden. Concerning the future I didn’t mean you should rush, just continue to sing 😊 Being a teenager there are many paths you can take but I would definitely prefer to listen to you in a concert than watching you playing football 😊 Of course you should do what feels right to you!

[@FernandoFernandez-dn7tm]

De niño una voz única., ahora de adolescente insuperable.

[@AkselRykkvin]

Gracias! Very nice of you to say :)

[@ianhands663]

Awesome bro. Been watching you from you were singing Tenor. Awesome bro. Awesome.

[@annellinorsolvollbrastein4076]

Vakker stemme og sang Du er fantastisk Aksel 💙😍😀

[@AkselRykkvin]

Tusen takk for det, hyggelig sagt :)

[@annellinorsolvollbrastein4076]

D

[@martinboring3895]

Incredible...You Nailed it.

[@AkselRykkvin]

Was a challenge!

[@deusexmusica803]

This is a really hard piece, especially for a 15 year old. Well done.

[@batuiranovaterra3556]

muito obrigado = lindissima voz = grato

[@franlawren4143]

I agree with Amy Evans' comment, Aksel--your voice is better each time I hear it, gaining strength and range. Wonderful. Please enjoy and keep blessing us with your voice.

[@AkselRykkvin]

Thank you! Very motivating to work with my voice when I can notice it is still developing.

[@antonioluigideighiacci2132]

well done

[@litoboy5]

great

[@janelamb8549]

stunning

[@ricardoenrique4550]

en pocos meses la evolución de tu voz es extraordinaria. sin equivocarme, creo que estamos ante unos de los grande barítonos del xxi. espero escucharte pronto interpretando a don gionvanni.

[@AkselRykkvin]

I went to see Don Giovanni here in Oslo before the summer holiday, with the excellent Norwegian baritone Johannes Weisser. That would be a dream role at some point, of course :)

[@mstreepnegron]

Excelente. Bellísima voz. Gracias a Dios no se ha dañado con el cambio que termina a los dieciséis años. Soy profesor de canto y ya querría tener una voz y alguien tan preparado como usted aquí en mi país Ecuador. Perdone, espero no molestarlo, pero para mí usted es un tenor. Y si es un tenor va a ser de los mejores de este mundo. Felicitaciones y más éxitos, muchos más. Bendiciones le de Dios!.

[@AkselRykkvin]

Thank you for your very kind message, and good luck with your singing students! This last month I have been able to reach slightly higher than before, so we'll see what happens with the baritone vs tenor thing :)

[@influencer8757]

_fine interchanging with the professional choir!_

[@AkselRykkvin]

Thanks, I think this worked well, too!

[@joelmartinez6115]

Great, greetings from mexico 👍👏

[@Frederik020]

Este chico tiene el voz más fantástico, verdad? Es increible y a mí me gusta mucho también. Muchos saludos de Alemania a Mexico.

[@MFledermaus]

Nice. I am just writing to say Glædelig Jul, Aksel. Keep warm. ;-)

[@AkselRykkvin]

God jul to you too!

[@missdoom1]

Wow, for en transformasjon! Flott baryton!!!!! :)

[@equasis2009]

Well Done, Congrats..

[@marziocavallucci3831]

Aksel ti preferivo soprano, anche se sei sempre bravo.

[@23Hope]

Aksel Du bist Spitze. Wann war die Aufführung??? Gott segne Dich klasse gesungen Danke. Gottes reichen Segen Gott liebt Dich und wird Dich immer lieben. Deine Christel 🙏💕😊🙏

[@erikascolovin6312]

Am 28.10.

[@user-yu6zt2bh3y]

Всем. Молчать. Слушать музыку.