Use the TuneCore module to sell your songs right from your Music Xray Song Presentation Pack.
See an example here: http://present.musicxray.com/xrays/1659/public
Mike McCready is an entrepreneur at the crossroads of music and technology. He pioneered the introduction of Hit Song Science into the music industry and followed up with Music Xray, the company he co-founded and serves as CEO. His companies have been the subject of case studies at Harvard Business School, IESE and he frequently guest speaks at many of the top business schools around the world. He helps the music industry identify high potential songs and talent and helps musicians get deals, get fans, & get better: http://musicxray.com