We comb through tons of event listings so you don't have to. LA events have come back from its winter doldrums tonight. Big time. Here's what's happening around town tonight -- there's lots of learning mixed in between all the great entertainment stuff.

CLASSICAL
The LA Phil's Concrete Frequency series -- combining music, film and symposia -- begins tonight. It's a Casual Friday, which means shorter programs with no intermission. On tap tonight is a live performance of an Aaron Copland score to the film The City. Afterwards, there's TalkBack, a casual discussion between the musicians and audience members. And as a special bonus: Breakestra (see above video) and Paul Dateh and Inka One will be playing in BP Hall.

8 pm // Concrete Frequency at Walt Disney Concert Hall // 111 S. Grand Avenue, Downtown Los Angeles // $15-$142. Tickets are selling fast.

READING
If you like the cold, frozen tundra, then you need to check out this lecture. Russell A. Potter, professor of English and Media Studies at Rhode Island College, will be presenting his new book Arctic Spectacles: The Frozen North in Visual Culture 1818-1885. The evening is "an exploration into 19th century arctic entertainments and representations in popular culture."

8 pm // The Velaslavasay Panorama // 1122 West 24th Street, Los Angeles // $15.

FILM
Filmed on a shoestring budget in Watts in 1977, Killer of Sheep "examines the black Los Angeles ghetto of Watts in the mid-1970s through the eyes of Stan, a sensitive dreamer who is growing detached and numb from the psychic toll of working at a slaughterhouse." It could never get screened properly or on video because of expensive music rights, though it was one of the first 50 films selected by the Library of Congress for the National Film Registry. Now, more than 30 years after its debut, the new 35mm print of Killer of Sheep has been restored by UCLA Film & Television Archive and plays tonight.

8 pm // Silent Movie Theatre // 611 N. Fairfax Ave., Los Angeles // $10.

MUSEUM
We know this was mentioned earlier, but it's worth mentioning again. Who knew that dinosaurs could be this cool? Once a month the Natural History Museum stays open late for dinner, discussion and music. Tonight's First Friday theme is "Discovery in the Age of Mammals: Building Brains and Making Minds." At 5:30, there's a tour with Margaret Ann Hardin, Ph.D., curator of anthropology, to see “Treasures from the Vault” in the Director’s Gallery. At 6:30, there's a discussion with USC neuroscience professor Antonio Damasio, M.D., Ph.D., on “Conscious Minds and The Minds of Others.” If that's not enough to entice you: Sea Wolf plays from 7 to 10 pm.

5 pm // Natural History Museum // 900 Exposition Blvd., Los Angeles // $9 (but free for museum members).