Three days, three different venues, three very different concerts. That is what the Buffalo Philharmonic Orchestra has in store this weekend. The weekend of adventure starts at 8 tonight with “Hollywood on the Harbor.” On Buffalo’s downtown waterfront, Associate Conductor Matthew Kraemer leads the orchestra in music from the movies. Chill out to the strains of John Williams, Danny Elfman, Henry Mancini and native son Harold Arlen. Tickets are $27.50. Saturday, the action shifts to Artpark, where at 8 p. m. the orchestra teams with the Chautauqua Theater Company for “Amadeus,” Peter Shaffer’s play about genius and envy, as personified by Wolfgang Amadeus Mozart and his rival composer, Antonio Salieri. Tickets are $15 to $48. At 7 p. m. Sunday, the Philharmonic lightens up with a tribute to the Grateful Dead with special guest band Forever Young. The Grateful Dead and orchestra enjoy a historic association—the Dead came to town for a performance years ago with the BPO and then-conductor Lukas Foss. Sunday’s Dead tribute takes place at Kloc’s Grove in West Seneca. Food and drink will be available. Gates open at 3 p. m., and other bands will perform the music of the Dead before the BPO takes the stage. Admission is $15. For info on BPO events, call 885-5000 or visit www.bpo.org .

—Mary Kunz Goldman