Back about 5 years ago there was a lady who did a workshop for singers on exercizes for the voice so that it doesn't get blown out... Alot of the exercized sounded like monks chanting but she swore that it works...

I donno if you can find her but it was at Blues Week at Davis and Elkins College in West Virginia and I think it was 2003 or 2004... Theis lady worked with lots of folks who had to sing alot so see if you can track her down...

B~