Do any of you guys play bossa-nova-type songs on guitar? How do you learn the chords? I can't do it at all by ear, and the internet is rarely helpful unless you want the Girl from Ipanema.

I'm half-Brazilian, so I'd love to incorporate that influence into my set more, especially as the bar-owner giving me gigs is Brazilian, but I can't play the damn chords!

I suppose, same question for jazz songs.