When I mentioned Cass Elliot (ages ago) I should also have mentioned Denny Docherty. He was a great singer in his day. Trying to bring it slightly more up to date, I like Duffy, and will always listen to Paloma Faith. My Grandson even bought me her last CD. The track Guilty shows her full vocal range. The younger generation (Folk or otherwise) seem genetically programmed to take up where we left off. (That's especially true with IT by the way) so I for one am quite optimistic for the future when it comes to singing in all styles.