I have a question -- has anyone had success using a jazz, "depth chart" approach in rock bands? A depth chart is a name someone here on Talkbass used to describe the first, second, and third call musicians for each position in a jazz band. Jazz musicians know standards, and can read off charts really well, so when you have a client who wants a gig, you can just book it without checking with any band members, and then run down the depth chart finding who is available. I have been on this model for a few years now and it is fabulous -- you rarely rehearse, your gigs are fun and have variety with new musicians, and you get better and better at the standard book of tunes. Your depth chart seems to get longer and longer as you attend jam nights, or meet different musicians. I would love to branch out into a rock band with this concept, but have never tried it. Rock is a bit harder in my view -- a lot of rock musicians can't read charts, won't read charts, and seem to be on the fixed musician model (one person occupies every seat in the band with few if any subs). You seem to have to rehearse harder because the song structure is not as free as in jazz...Vocalists tend to run the show and if the vocalist quits the band folds. Anyone have a depth chart for vocals and all the other musicians in a rock band?