It's more than a track but less than an album. If I just want to play Vivaldi's "Summer" that's typically done as 3 tracks for the 1 song. But the album it is o

It's more than a track but less than an album. If I just want to play Vivaldi's "Summer" that's typically done as 3 tracks for the 1 song. But the album it is on will almost always be the full 4 seasons suite, consisting of 4 songs / 12 movements (tracks). I can also see all the hundreds of different recordings of just those 3 movements in Summer. Sure you could just go to the album and play track 4, and pause when track 6 finishes. But this makes that a little easier to play and easier to add to playlists and such. There's also all the other metadata differences. Maybe I really like this composer, but apple music has it listed under the performing orchestra. Maybe I really like this conductor. This breaks all those out into different options.