what if, and I know this is totally insane/impossible but what if there were some sort of a small non volatile memory type card you could put into a phone with a large amount of storage and then you could put music files on it and just always have them with you! you could even combine that with like some sort of copper conduit to an ear-speaker and then you could have music in very high fidelity and never ever worry about not being able to listen to your favorite tunes, if only there were some such technology I think with modern tech you could even achieve low costs, like $30 for a quarter tera, that should fit at least a few albums