@Sharky-PI adding info to this thread: searching the collection by genre:microhouse does find the example track, as does searching by genre:clownpenis So manual search works for semicolon-separated-subgenres, just not the GUI dropdown system.

@mncroc Do you know when / how the duplicates occurred? If you used the organize feature prior to 1.0.23, it might be caused by a bug that is fixed in 1.0.23, but the duplicated are not removed automatically. To manually remove duplicates, see.: https://wiki.strawberrymusicplayer.org/wiki/Find_and_delete_duplicates_from_the_collection_database I suggest to make a backup of the database file (~/.local/share/strawberry/strawberry/strawberry.db) before attempting to modify it.

Strawberry has added compilation tag to the edit tag dialog in the new versions.