Here is a potentially useful article for you regarding itunes vs amazon vs google play:
http://digwhich.com/2014/02/14/best-online-music-store/
Other notes:
- soundcloud: most often at 320kbps. You can download many of them, so look for the "download" button.
- bandcamp: is a great source for unique and new music. The albums are usually well priced, and quite often they are "name your price", which means zero if you want. Also, they can be downloaded in 320kbps mp3 format, or flac lossless format - your choice. For example, here's a few interesting "name your price" albums:
https://thepolishambassador.bandcamp.com/album/quests-end
https://photocomfort.bandcamp.com/album/photocomfort
https://aesthesys.bandcamp.com/album/ascendere
- ektoplazm: really cool "
free and legal psytrance, techno, and downtempo music in MP3, FLAC, and WAV format". Here's just a few of the many that I like:
http://www.ektoplazm.com/free-music/hinkstep-sunrise-from-the-treetops
http://www.ektoplazm.com/free-music/phone-booth-robbers-falling-into-one
http://www.ektoplazm.com/free-music/amygdala-modus-operandi
http://www.ektoplazm.com/free-music/sephira-imagination-in-motion (forward to the Learning To Walk track)
- the
Official Free FLAC File Music Sharing Thread is a great thread for finding free flac tunes. I really have enjoyed these ones that I discovered in that thread:
https://archive.org/details/cj2009-10-05.ku100_at37 (Cowboy Junkies)
https://archive.org/details/ryanadams2006-10-17.sbd.flac16 (Ryan Adams)