One person gives out repeating parts to the groups.
Find parts by first singing what’s inside, then refining to find a motor part. Harmony is good. Look for spaces in the motor part to interlock new parts.
Find parts by first solo-ing over what is already created.
Play with rhythm – try putting 3 over 4 or try something in an odd rhythm like 5/4, 7/8, 9/8
Play with tonality – use some unusual harmonies, try notes that may not be the “first choices”
Play with language – try using some sounds you don’t always use; experiment with different consonants; imagine you’re speaking a language you don’t know but have a sound in your ear eg. french, russian, italian, etc.
The person giving out the parts can then solo over the foundation they have created.
Solo-ist can then step out and let another person solo and/or create new parts…