Keller Williams has been called guitars mad-scientist, a one-man-band for the new millennium and dozens of other clever sobriquets dreamed up by fans and music journalists trying to get a handle on his uplifting and ever-shifting style of music. See more at kellerwilliams.net.

A portion of profits from the sale of Keller Williams' strings go to the Rex Foundation: The Rex Foundation aims to help secure a healthy environment, promote individuality in the arts, provide support to critical and necessary social services, assist others less fortunate than ourselves, protect the rights of indigenous people and ensure their cultural survival, build a stronger community, and educate children and adults everywhere. See more at www.rexfoundation.org.