Write the next sentence in this paragraph:

How to lead a band rehearsal
Determine the type of rehearsal you want to hold.
Band rehearsals can be held for several reasons, most notably as " jam sessions, " in-depth practices, or dress rehearsals.
A jam session is a relatively unstructured type of rehearsal.
Rather than trying to address imperfections in the music, the band will play through a lot of material-often material that is either familiar or improvised. Jam sessions allow the band members to develop their overall sound, get more comfortable playing with each other, and have fun.