In my way, i have played and play a lot of "not call them bands", because it's like money band where sometimes bass and drum is needed and there are huge of songs. I have played them a lot of times, but don't remember fully, so i got a lot of paper, writen down the set of each song genre, time, chords and unison notes. As to the band where we play own songs, there is a BL - vocal who always pulls the thriger and there are are no questions from others anymore.