Where Gil Evans took an active part, as arranger, conductor or musician. Albums of the
Claude Thornhill's orchestra (filed under "C.Thornhill's albums") are not included.

Recordings made by American radios for their broadcasting needs that have
sometimes been transferred on disk (78 rounds, LP, CD).

Published under the name of Claude Thornhill and where at least one arrangement by Gil Evans is included.

Where musicians recorded one or several compositions by Gil Evans arranged by themselves,
or at least one arrangement by Gil Evans, without him being directly involved in the recording.
Claude Thornhill's albums (filed under "C.Thornhill's albums") are not included.

Where at least one arrangement, recorded long before on albums filed under
"Gil's albums", are found. Compilations where arrangements by Gil Evans are played by
the Claude Thornhill's orchestra are filed under "C.Thornhill's albums").