Several Mile End art galleries that call 5445-5455 de Gaspé home are banding together for a festive night of collective vernissages as a special season opener Rentrez party — check it out to find new exhibitions at Atelier Circulaire, Centre CLARK, Dazibao, Diagonale, Occurrence, OPTICA, Perte de signal and TOPO, plus special food and bar service, live video mapping from userZero and Danny Perreault and tunes from DJ Telemark. 5445-5455 de Gaspé, 5 p.m.–midnight, free
Head to Théâtre Fairmount for the launch party of Urbania’s special cannabis-themed 44th issue. Shaida and Kilojules will be providing tunes, and the entry fee includes a copy of the issue plus a free drink. 5240 Parc, 6–9 p.m., $20
The annual welcome-back-to-autumn festival OUMF ramps up this evening with free outdoor show next to UQAM, with performances by Samito, Zen Bamboo, la Bronze, Corridor, Marie-Pierre Arthur, I.D.A.L.G. and Rednext Level. St-Denis and de Maisonneuve, 7–11 p.m., free, continues through Saturday
A pretty rad double tape launch party is going down tonight, including a split A/B side from Loon and Best Fern at Phonopolis (207 Bernard W., 8 p.m., $5 or $10 with tape) and a long-player cassette from the Submissives with guests Phern, André Charles Thériault and Bucket Hat Pat over at Club Balattou (4372 St-Laurent, 8 p.m., $7).
Chinatown lounge Luwan (which appears to have reopened after announcing their closure a few months back) is hosting 7 Inches of Pleasure tour, the fourth annual all-vinyl fall tour featuring DJ Scratch (EPMD), Mat The Alien, Vinyl Richie, DJ Illo and an opening set by Scott C. 1050 Clark, 9 p.m., free
Montreal reggae artist Face-T launches a new record, EP2, with a live show at Groove Nation, with a warm-up by Club Balattou’s Mr. Touré and an aftershow set by Riddim Wise. 410 Rachel E., 9:30 p.m. (Face-T set at 10:15 p.m.), $10