Have you heard of Simon Wilcox? She describes herself as "a singer/songwriter with a boy's name" and she is David Wilcox's daughter. Her music is mellow and energetic and easy to listen to and multi-layered and intense and beautiful.
Here's "Beatbox" and "Eyes on You" from The Charm and the Strange from 2007.
and "Mommies and Daddies" and "Right Ride" from 2004's Smart Function.