This morning I gave $10 to someone I've never met. Around this time of year it seems everyone wants something, whether it's a pointless present, a donation for public radio, a contribution to a political campaign or just pocket change at a stoplight. Thomas Fekete, guitarist for the Florida rock band Surfer Blood, wants to survive — doctors found a metastasizing sarcoma in his abdomen earlier this year — and he and the band have come up with a clever way to solicit medical funds from strangers (he's up to $35,000 out of a goal of $100,000), offering a digital album of unreleased music by an all-star team of Fekete's favorite bands: Guided By Voices, Yo La Tengo, Cults, Real Estate, The Pains of Being Pure At Heart, Lou Barlow, The Ghost of a Saber Tooth Tiger, Nick Diamonds, Julianna Barwick, Alex Somers, The Drums, ...And You Will Know Us By the Trail of Dead. (If you like any of these artists, you should like Surfer Blood, and vice versa; see if you can find at least two Louisiana connections in there.) There's also Burner (Joyful Noise), a new bedroom record composed by Fekete during his treatment that's reminiscent of Aaron Deer's Horns of Happiness. That makes 24 songs for $17, which is about as strong of a return for testing out the old chestnut on giving and receiving as one could hope for. Turns out it's best to do both. Bayonne opens. Tickets $10.