The Boulder Friends of Jazz hires a rhythm section, or "back line" of three musicians to ensure that there will be good quality accompaniment for any musician who happens to drop in.
A Jam Leader is hired on a rotating basis to lead off the jam and to ensure that any musician in attendance gets adequate time to play in the jam. Prior to the jam, the Guest Director engages two additional musicians to round out the front line. All three members of the front line as well as the three musicians in the rhythm section are paid for their performances at the jam.
Door prizes are awarded to those in attendance based upon ticket drawings...