Thelonious Monk Quartet-Live At Newport 1963 CD (with Pee Wee Russell on 2 tracks) We lost bass player Butch Warren on 5th October. He had a short career due to illness and was house bass player at one time for Blue Note records. But, IMO, his singing bass lines were very very poorly recorded. I feel that on this live Monk session his creative ability is allowed to shine through.