R
- Rain
- Rain Fell Within
- Ramses
- Random Touch
- Ray
- The Red Masque
- Redd
- Reindel (MP3.com)
- Relic
- Reportaz
- Rey
- Robert Rich
- Riverside fanpage
- Rock Star Scientist
- Raimundo Rodulfo
- Rolf Munkes Band
- Romislokus
- Rosæ
- William Red Rossi
- Jordan Rudess
- Rudess/Morgenstein Project
- Ruins
- Runaway Totem
- The Research Institute
- Suddenly, one day, it seemed clear to me that full flowering of music is frustrated by our instruments – Ferruccio Busoni