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Two years ago, the D.C. Public Library launched an ambitious project to chronicle the past, present, and future of D.C.’s punk scene with the DC Punk Archive. Since then, the Punk Archive has amassed a huge number of items for its collection, and supported D.C.’s current music scene by regularly hosting shows in the Martin Luther King, Jr. Library basement. Tonight, it celebrates two years with not just another basement show, but with a mixtape.

The Library Mixtape, which DCPL is releasing in collaboration with local tape label DZ Tapes and we’re premiering below, is like a greatest hits compilation of some of D.C.’s best current bands, featuring Priests, Hemlines, Laughing Man, Governess, Nox, Title Tracks, BRNDA, Coup Sauvage and the Snips, GIVE, and others. (All of whom have played one of DCPL’s basement shows at one point or another). All proceeds for the tape, which will be available at tonight’s show and online here, go to the DCPL Foundation, which funds DC Punk Archive’s projects.

But that’s not the only thing DCPL is doing to celebrate two years of the Punk Archive. On view until Nov. 30 at MLK Library is a photo exhibit culling some of the best concert photography from both the DC Punk Archive and the Go-Go Archive, both of which are crucial to chronicling the legacy of D.C. culture. Because for those who’ve lived here their entire lives, punk and go-go are as iconic to D.C. as the U.S. Capitol (no, seriously).

The DC Punk Archive celebrates two years tonight with bands Stop Worrying & Love The Bomb, Anexo Social, and G.U.M.P. at 6 p.m., 901 G St. NW. Free.