Year-2 ago I found at random these acoustic songs & liked:
Flight of the Conchords - If You're into ItLinda Perhacs - Call of the RiverLinda Perhacs - Sandy ToesHer album "Parallelograms" is worth checking out. She released it in 1970, but it didn't do well. Few decades later it gets sudden chic & she now is a big deal (all that time she's been a dentist, still is). I think she has pleasant voice & some of tracks sound interesting.
Full album: http://www.youtube.com/watch?v=iXBd-SjQxpQ
Along with stidio cats, Linda added some touches/fx & there are moments when you can hear trombone, f.inst. Still, it's done with guitar, mainly.