I figure this one is worth it if you can make it. I've spoken/raved about
The Hedges before - an outrageously good vocal trio. Well for R30 you can check them out with two other acts in Claremont:
Here's a clip of The Hedges doing a CSN cover at The Alma Cafe last year. They also do originals, which are equally strong, but clips are nonexistant. Filmed with an iPhone, but the talent shows through the limitations of the media and is still good enough to give you an idea:
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Do yourself a favour and check them out.