That’s a rap. GROOVE Brass, Bows & Beats What: Jam on with Lyrics Born, Jazz Mafia, and other soulful talent making up the hip-hop-meets-jazz orchestra at the not-to-be-missed Marina concert. Why: Back to bassics. When: Sat., 8 p.m. Where: Palace of Fine Arts Theatre, 3301 Lyon St., at Bay St. (415-567-6642). Tickets online at sfjazz.org. WALK Hayes Valley Block Party What: Shop the Lemon Twist sale, scope indie art, sip bevvies, and stroll Hayes Street for the spring soiree. Why: You’re a Valley girl. When: Fri., 6-9 p.m. Where: See list of participating galleries and stores. EAT (and DRINK) Halfsy Hour What: Zinnia in Jackson Square kicks off happy hour with half-off cocktails, wine by the glass, and beer with mini entrees. Why: Bud, wiser. When: Tues.-Sat., 5-7 p.m. Where: 500 Jackson St., at Montgomery St. (415-956-7300). Clambake Sundays What: Mussels, clams, sausage, potatoes, and whoopie pies galore at the Cow Hollow seafood joint’s weekly family-style eat-a-thon. Why: Wham, clam, thank you, ma’am. When: Sun., 5-10 p.m. Where: Nettie’s Crab Shack, 2032 Union St., b/t Buchanan & Webster Sts. (415-409-0300). CONSULT Paris Style: an Insider’s Guide to Shopping and Dining What: Get a breakdown by hood on everything from eats to vintage boutiques in local author Joanne Horning’s must-have manual. Why: It has a certain je ne sais fois. When: Before you visit the City of Lights. Where: Online at lulu.com.