When Larry LeBlanc of Billboard sent us a letter written by Canadian music megaproducer Bob Ezrin, we were intrigued. With the possible exception of new superpower Steve Jobs, the music industry has been circling the drain in recent years, temporarily jamming the flow with the barely-explored careers of too many worthy artists. Bob Ezrin has been there and seen it all, and he's got something to say about it. Behind the console since the 1970s,......