Question: What American Jazz pianist toured with an American musician who is best known as a trumpet playing band leader who led a big band from 1939 to 1946 and ended his career as the leader of the house band at the Cantina Room of the Continental Plaza Hotel?
Sentence (from "Harry James"): He was especially known among musicians for his astonishing technical proficiency as well as his superior tone, and was extremely influential on up and coming trumpet players from the late 1930s into the 1940s.
Relevant evidence: No