Conversation so far:
When did Duke Ellington die?
Duke Ellington died on May 24, 1974.
What was something significant that happened in Duke Ellington's last years?
In 1999, Duke Ellington was posthumously awarded a special Pulitzer Prize commemorating the centennial year of his birth, in recognition of his musical genius.
What recordings did Duke Ellington make?
Duke Ellington also recorded songs written by his bandsmen, for example Juan Tizol's Caravan, and Perdido, which brought a Spanish tinge to big band jazz.

Question: Did he tour at this time?
Self-contained rewrite: Did Duke Ellington tour when he still had a band?