Steven Tyler, frontman for Aerosmith is cashing in on the band’s back catalogue, by selling the rights to a music marketing company.Love in a Elevator and Dude Looks Like a Lady are two of the 160 songs Tyler has written and co-written, worth an estimated $50 million (£25 million).According to the New York Post, the rocker has formed a partnership with Primary Wave Publishing, which was formed by former Arista and Virgin Records boss Larry Mestel. Primary Wave also own a stake in the Beatles songs written by John Lennon and the back catalogues of Kurt Cobain, Daryl Hall and John Oates.Tyler says, "I love the passion and commitment that Larry and his team put into marketing songs. Primary Wave's expertise will ensure that my catalogue will continue to rock generations well into the future and boldly go where no songs have gone before."The Post claims Tyler's deal coincides with a change in tax law. In 2006 the U.S. government lowered the tax rate on such sales from 38 per cent to 15 per cent.