Folk rock singer and songwriter, Jonathan Coulton, is selling his music (by album and by individual song) in lossless FLAC format, 192kbps MP3 format, as well as the MP3+G Karaoke format. All of the songs he has written are released under a Creative Commons BY-NC license.
Trent Reznor and his band Nine Inch Nail have released a 36 track instrumental collection entitled Ghosts I-V under the Creative Commons Attribution Non-Commercial Share Alike license. The first 9 tracks are available at no-cost as "high-quality, DRM-free MP3s, including the complete PDF." They note that MP3s were encoded using the free software program, LAME, at 320kbps.