Wednesday, Sept. 9

‘Earth and Sky’ closing reception. This collaboration between the UA and Wales’s Aberystwyth University includes examples of lithography, etching, screenprinting and relief printing. Paul Croft, a visiting artist, will speak and answer questions. Refreshments will be served. Doors open at 5 p.m., and the talk begins at 6 p.m. For more information, email brownhb@email.arizona.edu. Student Union Memorial Center, Union Gallery. Free.

‘Enlighten Up!’ Don’t worry, that’s not a demand — it’s only a movie. This new documentary, showing at the Loft for one night only, explores one determined yoga fan’s attempt to change a random person’s life through the practice. Not rated. 7:30 p.m. The Loft Cinema, 3233 E. Speedway Blvd. $8.75 regular admission, $6.50 with student or military discount.

‘Debt as Money 2: The Looting of America. Sure, you could go see “”Halloween 2,”” which just opened. But this one, from the sound of it, is probably a lot scarier whether you buy its argument or not. 7 p.m. Ward 6 City Council Office, 3202 E. First St. Call 777-7190 for more information.

Thursday, Sept. 10

Sylvan Street. This “”progressive Nu-jazz ensemble”” will perform original compositions. The group has just issued its debut album, The Perfect Leaf. What makes a leaf perfect, anyway? Have you ever seen one without a spot on it, or a hole in it? 7:30-9:30 p.m. Centennial Hall. $5-9.

‘Baba Yaga, Demeter, and the Drunken Mother: Myth, Metaphor, and Science at the End of the World.’ That’s certainly a mouthful. Alison Hawthorne Deming — a renowned poet, essayist and UA creative writing instructor — will presumably explain what it means when she gives this talk. We suspect that the world will not actually end during the lecture. 8 p.m. UA Poetry Center. Free.

Friday, Sept. 11

Kate Mathis. This local author will sign copies of her debut novel “”Living Lies.”” 5-6 p.m. Bookmans, 6230 E. Speedway Blvd. Free.

Phil Villarreal. The local author will read from his new book, “”Secrets of a Stingy Scoundrel: 100 Dirty Little Money-Grubbing Secrets,”” and sign copies. 7 p.m. Barnes and Noble, 5130 E. Broadway Blvd. Free.

Robot Exchange. No, it’s not a speed-dating service for androids — it’s an art show combined with a dance party. Call 622-8848 for more information. 7 p.m. Hotel Congress, 311 E. Congress St. Free. 21 and over only with ID.

¡Salud! This fundraiser for Dequenesh, a community health clinic, will feature performances by Batucaxé and Om Shanti, as well as dancing, food and a silent auction. (Who doesn’t get tired of those regular auctions where people keep yelling all the time?) 7-10 p.m. 330 E. Seventh St. $10.

Saturday, Sept. 12

Bat-Night ’09. If you’ve never seen 40,000 bats hit the sky, this is your chance. We can’t guarantee, however, that Batman will show up. Also featuring performances by Flam Chen and Logan Phillips. Bring a blanket and water. Several local eateries will feature post-event specials. Call 955-3429 for more information. 5:30 p.m. Rillito River, east of Campbell Avenue bridge. Free.

‘Grease’ Sing-along. This 1978 musical might be a travesty of the decade it pretends to celebrate, changing a revolutionary culture into kitsch by robbing it of its context and making it seem safe, corny and boring. But it seems to have its fan base, and they should be pretty happy singing along to “”Greased Lighting”” and the like. 7 p.m. The Loft Cinema, 3233 E. Speedway Blvd. $8 general admission and $6 Loft Cinema members.

Sunday, Sept. 13

SAHAB Preliminary Blues Challenge. Do you have the blues in your soul? If so, this is where you go; if not, this is where you go to learn. Finalists from this annual competition will move on to the Final Blues Challenge, to be held Sept. 27. Both events begin at 1 p.m. at Club Congress, 311 E. Congress St. $5 for genreal admission, free for kids 12 and younger.

Erin Jean. This singer will perform to celebrate the release of her new album, Always. Call 622-2823 or visit www.arizonarosetheatre.com for more information. 2 p.m. Temple of Music and Art in the Cabaret Theatre, 330 S. Scott Ave. $15 general admission, $13 with military or senior ID, and $10 for children 12 and under.

Monday, Sept. 14

Open studio sessions for actors. Planning to be the next Brad Pitt? This promises a “”safe, creative and empowering environment”” for aspiring actors, directed by Steve Anderson. Call 520-981-0145 or visit www.steveandersonacting.com for more information. Every Monday through Sept. 30. 6-8:30 p.m. ArtFare, 55 N. Sixth Ave. $10 per night.

Tuesday, Sept. 15

These United States. Yes, this is a band, but wouldn’t it be cool if the entire country was performing at the same time? Walt Whitman would be proud. 9:30-11:30 p.m. Plush, 340 E. Sixth St. Free.