Brad Wilk was a musician for Greta.
Keith Nichols -LRB- born 13 February 1945 -RRB- is an English jazz multi-instrumentalist and arranger , a player of the piano , trombone , reeds , and accordion .. piano. piano. trombone. trombone. reeds. Reed ( instrument ). accordion. accordion. jazz. jazz. multi-instrumentalist. multi-instrumentalist