Example entities

The three following works are in D mixolydian:
https://musicbrainz.org/work/d30480a4-5375-4257-9ec0-f3c9e3bd2998
https://musicbrainz.org/work/c656cbe7-9782-4e46-8354-b7c12ba298e9
https://musicbrainz.org/work/8d9b4d58-2282-47a1-80dc-af3d6dd64acd

More background

Here are 460 scores in D mixolydian (although there can be several scores/settings for a single work/tune):
https://thesession.org/tunes/search?mode=Dmixolydian

Here are 618 scores in A mixolydian:
https://thesession.org/tunes/search?mode=Amixolydian

The two above are the main mixolydian keys/modes for transcribing Irish traditional music according to:
https://thesession.org/discussions/2754#comment54185

Some other mixolydian keys/modes are also listed at:
https://thesession.org/tunes/

Example in F mixolydian (exception to the above list):
https://thesession.org/tunes/15147#comment780873

This suggests adding mixolydian keys/modes for natural notes.

Mixolydian mode in theory of Western music:
https://en.wikipedia.org/wiki/Mode_%28music%29#Mixolydian_.28V.29

List of entries

A mixolydian, B mixolydian, C mixolydian, D mixolydian, E mixolydian, F mixolydian, G mixolydian