Most of the music I listen to is independent musicians - either CDs bought at gigs which I put into itunes, or downloads bought via Bandcamp / direct from their websites. My elderly ipod has finally lost the plot, & it'd be nice to have more music to listen to when I'm out & about anyways. Any recs for best app to do that? I'm happy listening to whole albums, no particular need for playlists etc though no objection to them as an option (very old skool I know). Needs to be offline as I don't have much signal at work.