Playlist magazine offers free music downloads. I I think I downloaded about 60 last night. No need for iTunes. A variety of genres. Get them here. They update it with a new song every day, so it may be bookmark worthy.
Technical note. You may have to right click and choose save to disk to download a copy. Simple clicking on my Mac only opened them in memory, A right click (or control click) did the trick.
Dad, this one has a few classical pieces!