>>127166878 (OP)also i want to add that you HAVE to learn the notes, the scales, and the intervals. You have to know what a 5th, a 9th, an 11th is. the only thing that is unnecesary is learning "why you should use X chord over Y", the circle of fifths, and all that jewish bullshit. but if you don't know how to tell your bandmates what key the song is in or what chord are you playing you're kinda screwed. you can come up with chords and not know their technical names but you should have enough knowledge to tell your bandmates "this chord is C B flat G# and F"