Who is the composer of the studio album "on the rock" and a Grammy award winner?
On the Rock On the Rock is the 20th studio album by Argentine singer-songwriter Andrés Calamaro, released on June 1, 2010.
Qmillion Qmillion (born Keith Lewis, in the US), is a record producer, mix engineer, composer, and writer based in Los Angeles. Qmillion's achievement for recording and mixing recording artist Robert Glasper's critically acclaimed "Black Radio" album, gained him a Grammy Award for Best R&B Album at the 55th Grammy Awards in 2013.