When I was a kid, my mom had a Best of Judy Collins record that I listened to obsessively, playing “Send in the Clowns” and “Both Sides Now” on repeat. Yes, even at the age of eight I was already prepping for a life of constant sorrow. It wasn’t until years later that I learned my favorite childhood folk singer was actually the inspiration for “Suite: Judy Blue Eyes” by Crosby, Stills and Nash. Turns out that Judy Collins had a two-year relationship with Stephen Stills that ended tragically when she left him for future Sgt. Stedenko Stacy Keach. No doubt, this will be discussed in her new book Sweet Judy Blue Eyes: My Life in Music, and in person when Judy Collins appears on Saturday, April 7, at Book Passage. 51 Tamal Vista Blvd., Corte Madera. 1pm. 415.927.0960.