I hope you can help me: since last year, I have become very interested in many variants of the hummel in northern European countries. I have played my Dutch hommel at a primary school for pupilsl with learning disorders and I have experienced that the sound of the instrument works very relaxing for them . Besides that, the instrument can be learned quite easily and it is a great stepping stone for other string instruments for them and pupils on regular primary schools, for which I am busy to promote the instrument for their music lessons. Can you tell me if there are building plans for the langleik which I can purchase, and where? Or are there firms where I can buy a langleik? I hope you can help me out.