Gregg & Gabriela visit the new Teotihuacan exhibit at the de Young Museum (SF). Gabriela interviews Singer/Songwriter Shawn Colvin who's revisiting her Grammy-winning album of 20 years ago.  Then we meet a chalk artist who's creations only last a weekend.  All this and new music from Béla Fleck & Abigail Washburn, First Aid Kit, The Mynabirds, Chris Hillman and more...  Music, Food,'s UnderCurrents WEEKEND.  <<listen/playlist>>

Photos: Gregg McVicar