So I was excited like many others a few months back when Google Play Music was updated to support external (SD) storage. However I don't know if it is actually being used? I'm hoping someone can tell me more or if they see the same behavior.
If you look at app data for play music, it APPEARS to be saving music - I currently show over 700MB of data for the app. However if I open the app and select "On Device" instead of "All Music", I there is never anything listed (In Listen Now, My Library, etc).
So it appears to me that songs are cached but never used for anything, meaning I'm re-streaming every time I listen to something. It definitely appears that way when I re-listen to playlists.
Anyone else notice this?