Backing up Music on iPhone without Computer or iMatch
I currently backup my iPhone 6 with iTunes on my Mac computer. I would like to switch to backing up with iCloud and have subscribed to the additional storage. One thing I can't figure out is how to back up my music that was not purchased on iTunes (ie ripped from CD's). I don't want to sign up for iMatch and I don't want to rely on my Mac. Can I move the music files to DropBox (or equivalent cloud storage)? Would I be able to get them back on iPhone without iTunes or a computer? Thanks!
iPhone 6, iOS 8.3