But Meyer and his sharia compliance officer, Sheikh Yusuf DeLorenzo, say they have cracked the code.

FORBES: Hedging

Now touring with a new self-titled album, the singer-songwriter, along with band members Paul Defiglia on upright bass and drummer Malachai DeLorenzo, performed from Nashville and spoke with Weekend Edition Saturday's John Ydstie.

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Sheikh Yusuf Talal DeLorenzo, 59, is one such top scholar and works from a Toll Brothers (nyse: TOL - news - people ) mansion in the suburbs of Washington, D.

FORBES: Don't Call It Interest