I can't find any way to search for a song by title only. You can search for songs, but any term you provide appears to be applied to any metadata associated with the song. Look at the largely nonsensical results when I search for a song with the letters "de":
In many cases, that string doesn't appear anywhere. I used
MusicCatalogSearchRequest(term: searchTerm, types: [Song.self])
Likewise it stands to reason that people want to search for artist and album names using text strings. How do we do that?