Chordify.net - play any song on Youtube

Hey Team!! (we're a team in case you didn't know, go us!)
If we remember (1) where all the lettered notes are (2) that Major chord means play the letter, skip 3 notes, play a note, then skip 2 notes (skip 3 then 2) and (3) a minor chord is the opposite, skip 2 then 3:
then we can play with chordify just by following the letters. If it just says a letter e.g. A or Bb without a little m after, Am or Bbm, then it is major. We'll learn 7th chords soon, for now if you see A7 just play A Major.
For free you can play along with any song. For a subscription, you can slow the song down, loop sections, and see chord diagrams. But you don't need chord diagrams if you remember (1) lettered notes (2) Major skips and (3) minor skips. Please try it out, if a song is too hard keep searching for songs that are slow and easy enough for you and build up!!!
Best,
Mr. Ben