As our jazzier halves over at Revivalist posted recently, musical genius Stevie Wonder and Miami-based graffiti artist Jona Cerwinske have teamed up with Ten O’Clock Classics, an organization that brings classical music–both concerts and free lessons–to non-traditional spaces, including low-income communities. In order to fund these noble efforts, TOC is auctioning off Steinway Grand pianos customized by notable artists. Currently on the block: a Steinway grand initialed by Stevie (below) and a 1927 mint-condition beauty custom-decorated by Cerwinske at the Miami International Art Fair (above). Find out about TOC’s Directions program here and if you got a few stacks to throw down for a good cause, place your bid here. Keys and Gs!