Complex sentence: Since the 1980s she has been active on the jazz scene as a singer, performing and collaborating with, among others, Huw Warren, Kenny Wheeler, Ralph Towner, Joe Zawinul, Michael Brecker, Steve Turre, and the Art Ensemble of Chicago.
Split into simpler sentences: Since the 1980s she has been active on the jazz scene as a singer. She has worked with Huw Warren, Kenny Wheeler, Ralph Towner, Joe Zawinul, Michael Brecker, Steve Turre, and the Art Ensemble of Chicago.