Tuesday and Wednesday nights around Wilmington:

Tuesday events:

Karaoke at Mojo 13, no cover, draft specials, 8pm.

Acoustic/Electric open mic night at WCL at the Queen, 7pm.

"Trash to Inventions", for adults, Claymont Public Library.  Learn how to turn discarded metal, plastic, paper and styrofoam into useful products.  6:30pm, free, registration required.  Call 798-4164

Free classical concert in Philly:
"FREE College Performance Series concert tonight at Penn! Featuring Philadelphia Orchestra violinist Daniel Han and Principal Percussion Christopher Deviney, the concert will be held at 7:30 PM at Amado Recital Hall (34th and Spruce Sts.)."

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Wednesday events:

Theatre N will have a special Wednesday night screening, courtesy of the Delaware Humanities Forum:
"The Hollywood Librarian: A Look at Librarians Through Film".
Wed. 4/13, 7pm.  $5.  Validated parking. Theater N is located in the Nemours Building at 11th and Orange.  For more info:
http://www.theatern.org/Films/2011/April/The-Hollywood-Librarian

Free screening of short videos in Philly:
"Join WHYY on Wednesday, 4/13 at 6pm for a screening of the short videos produced by local novice filmmakers as part of PIFA. Following the screening, we'll present the documentary Paris the Luminous Years, exploring the arts in Paris, 1905 to 1930.
This screening event is FREE and open to the public, though advanced registration is required. Click the link to RSVP."
http://whyy.convio.net/site/Calendar?id=105921&view=Detail

At the WCL at the Queen: 4W5 blues jam (a revival of the jam sessions that David Bromberg used to hold at the now-closed 4W5 cafe), 7pm.

Comedy nights at both The New Candlelight Dinner Theatre and The Cube restaurant.