I have pretty limited experience with female vocalists. Mainly what I heard growing up. I like Aretha Franklin and Janis Joplin. Bonnie Raitt is another one I like. I like some of Vienna Teng's music, but she can be pretty flat at times. I'm more gravitated to blues style than jazz, so like I said, I like Bonnie, I really like Becky Barksdale. I still think Joss does a good job for the type of music she sings and her live show on PBS was pretty good. Norah just has a voice that's soothing to me I guess. It's what I listen to when I'm stressed. Most jazz vocalists I've heard just don't sound that good to me. They sound off-key half the time, maybe that's how it's supposed to sound? Jazz guitar does that for me alot of the time too. Sounds like the band is warming up and practicing scales. I can listen to Al DiMeola and a few others. Could be I'm not old enough to appreciate it .