Robert Edward "Bob" Brookmeyer (December 19, 1929 – December 15, 2011) was an American jazz valve trombonist, pianist, arranger, and composer. Born in Kansas City, Missouri, Brookmeyer first gained widespread public attention as a member of Gerry Mulligan's quartet from 1954 to 1957. He later worked with Jimmy Giuffre, before rejoining Mulligan's Concert Jazz Band. He garnered 8 Grammy Award nominations during his lifetime.

Source: Wikipedia (https://en.wikipedia.org/wiki/Bob_Brookmeyer)