OOps! Just shot a blank!
Anyway, you were looking for a term... it just sounds like jamming!
Similar to Jazz... just improvise on the music (melodies, drums, etc),
and bring in elements whenever (including segues such as drum, guitar,
or trumpet/sax solos). So, Dubtribe could be an electronic+acoustic
jam-session group.
I believe I've heard of Dubtribe before; I shall check them out!
-djkc
Imagine that...Jazz all over again...music with the groovey human element.