You Can't Do That on Stage Anymore, Vol. 4 is a two-CD set of live recordings by Frank Zappa, recorded between 1969 and 1988, and released in 1991. Track listing All tracks written by Frank Zappa, except where noted. Personnel Musicians Frank Zappa – vocals on tracks 1-1, 1-2, 1-4 to 1-6, 1-8, 1-9, 2-4 to 2-7, 2-8 (sensitive vocal), 2-10 to 2-12, 2-16, and 2-18; lead guitar on tracks 1-4, 1-5, 1-7, 1-10 to 1-16, 2-1 (1st solo), 2-2, 2-3, 2-6, 2-07, 2-10, and 2-11 Ray White – guitar on tracks 1-2, 1-4 to 1-9, 1-13, 2-1 to 2-6, 2-11, 2-16, and 2-18; vocals on tracks 1-2, 1-4 to 1-9, 2-1 to 2-6, 2-11, 2-16, and 2-18 Ike Willis – guitar on tracks 1-2, 1-4 to 1-7, 1-9, 1-10, 1-13, 1-15, 2-3, 2-6, 2-11, and 2-16; vocals on tracks 1-2, 1-4 to 1-7, 1-9, 1-14, 2-3, 2-6, 2-7, 2-11, and 2-16 Steve Vai – guitar on tracks 1-8, 2-1 (2nd solo), 2-2, 2-4, 2-5, and 2-18 Lowell George – guitar on tracks 1-11, 2-8, and 2-12; vocals on tracks 2-8, and 2-12 Mike Keneally – guitar on tracks 1-14, and 1-15 Warren Cuccurullo – guitar on track 2-7 Denny Walley – slide guitar on tracks 1-12, 1-16, and 2-7; vocals on tracks 1-1, and 2-7 Bobby Martin – keyboards on tracks 1-2, 1-4 to 1-8, 1-10, 1-13 to 1-15, 2-1 to 2-6, 2-11, 2-16, and 2-18; saxophone on tracks 1-2, 1-4 to 1-8, 1-10, 1-13, 2-1 to 2-6, 2-11, 2-16, and 2-18; vocals on tracks 1-2, 1-4 to 1-8, 2-2 to 2-6, 2-11, 2-16, and 2-18 Allan Zavod – keyboards on tracks 1-2, 1-4 to 1-7, 1-10, 1-13, 2-3, 2-6, 2-11, and 2-16 Tommy Mars – keyboards on tracks 1-1, 1-8, 1-9, 1-12, 2-1, 2-2, 2-4, 2-5, 2-7, and 2-18; vocals on tracks 1-8, 1-12 (2nd solo), 2-1, 2-2, 2-4, 2-5, 2-7, and 2-18 Don Preston – keyboards on tracks 1-11, 2-8, and 2-12 George Duke – keyboards on tracks 1-5, 1-16, and 2-10; vocals on tracks 1-5, and 2-10 Peter Wolf – keyboards on tracks 1-1, and Minimoog solo on track 1-12 Mike Keneally – synthesizer on tracks 1-14, and 1-15 Don Preston – synthesizer on tracks 2-8, and 2-12 Scott Thunes – bass on tracks 1-2, 1-4 to 1-8, 1-10, 1-13 to 1-15, 2-1 to 2-6, 2-11, 2-16, and 2-18 Arthur Barrow – bass on tracks 1-1,