Thanks very much Mac. As always - you've helped me put a first foot forward. And jazzmandan, I'm going to follow up on your suggestion immediately.

Dan - do you use a helicon hardware product - if so, which one and what harmonies do you use on your voice for what songs ?

Mac - How would you recommend I practice to start developing my ability to sing harmonies. Just start with singing the melody notes for a simple song with 3rds, and then use my guitar to find the 3rd higher, and sing along with the proper guitar notes ? - what other ways to best learn this ?