Jim, thanks for posting your Allman Brothers S900 recording effort. I thought the style sounded fine, with nice guitar backing.
That said, I myself would never attempt to drive the Yamaha VH the way you did, with such a high degree of exposed vocal harmony (& associated distoration), reulting in, if not Alvin & his brothers themself, close cousins. I would prefer you kept your VOICE as dominant LEAD voice, with the backup harmonies lower in volume than yours.
That said, did you simply utilize one of the S900 VH presets? Not sure, but I believe you might be able to improve the VH sound quality by creating your own "CUSTOM VH VOICE" file. There should be a dedicated section in the S900 manual that goes over all the MANY (over 25+?) VH parameters you can customize & store to achieve this. I can only say it substantially improved the results I'm getting on my T2, as I never use ANY of the preset settings, but use them as a point to start from to create my own settings & tweaked for my voice.
As far as the LH bass line issue goes, so what if it isn't exactly like the Allman Brothers cover version, it's YOUR RENDITION afterall, and sounds fine to me. If you want to play LH bass lines, fine, but the overall result (and except for the VH backup) sounds fine to my ears, and I'm sure most of your listeners as well.
Btw: how r u progressing with your hand injury recovery? Glad to see you aren't letting it hamper with your music-making.
- Scott
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