“When I Paint My Masterpiece” is a rare instance where the cover version was released before the original recording. The Band’s version is on their 1971 album Cahoots. Bob Dylan, who wrote the song, also recorded it in 1971 and released it on 1972’s Greatest Hits. Vol. II. (Not available on YouTube).
A live version by Dylan and the Band recorded at the 1971 concerts that became the Band’s Rock of Ages (1972) was issued on the 2001 remaster.
Dylan has changed lyrics over the years. The Band’s version and the live version have “Got a date with a pretty little girl from Greece.” Dylan has changed it to “Got a date with Botticelli’s niece”. The first recording, released on Another Self-Portrait has a girl from Greece.
The official lyrics have Botticelli’s niece.