[1] Ditmas accompanied singers including Judy Garland, Barbra Streisand, Della Reese, Leslie Uggams, and Sheila Jordan between 1964 and 1970.
[2] He was then with Joe Newman (1971), Jazz Interactions Orchestra (1971), Gil Evans (1971–77), Enrico Rava (from 1971), Stardrive, Atmospheres, and Future Shock (1972), New Wilderness Preservation Band (1972–73), Paul Bley, Lee Konitz, Chet Baker (1974–75), and Stan Getz (1975).
[1] He returned to work with the Evans Orchestra from 1979 to 1985, and lived in Italy in 1986–87, where he played with Dino Saluzzi, Enrico Rava, Rita Marcotulli, and Pietro Tonolo.
[2] His 1995 album What If also featured saxophonist Sam Rivers, guitarist John Abercrombie, Bley on piano and synthesizers, and bassist Dominic Richards.
[1] With Jaco Pastorius With Paul Bley With Gil Evans With Enrico Rava With others Main source:[6]