Issue: Sometimes you like an album, except for one song (Or several). While you could create a playlist to circumvent this issue, I personally feel like going in the other direction might be worthwhile.

Prospective Solution: Right-click a song to access context menu, and select Remove from Index / Ignore or other such language. This would keep the music file intact, but:

• Could move it to a folder with proper breadcrumbs.
• Could add new boolean field, such as hidden or ignore to SQLite metadata table.
• Could write Skip or Ignore tag to file's ID3/FLAC/Vorbis comment with added playlist logic.
• Maybe some sort of hidden playlist logic that subtracts excluded tracks from the playlist when it populates after selecting an album, or something?

Personally, I favor the first approach, as it seems easier to transfer, and is more device/software agnostic. It may be one of the difficult to implement, though. I could be wrong.

Thoughts?