Alarm Will Sound (Thursday) The rumor of a planned meeting and a proposed joint concert between Stockhausen and the Beatles, mentioned in passing in a Stockhausen biography, gave rise to “1969,” Alarm Will Sound’s latest adventure. A freewheeling fantasy in which John Lennon, Stockhausen, Luciano Berio, Leonard Bernstein and others discuss their ideas (the script, by Andrew Kupfer, is drawn from their writings and interviews) about music and politics, the piece, staged by Nigel Maister, evokes time when Utopian ideas and musical experimentation were in the air. The program is a mashup of works from the time, including orchestrations of the Beatles’ “Revolution 9” and “Tomorrow Never Knows,” and movements from Bernstein’s “Mass.” At 9 p.m., Zankel Hall, Carnegie Hall , (212) 247-7800, carnegiehall.org; $30 and $42. (Allan Kozinn)
American Composers Orchestra (Friday) The American Composers Orchestra presents the latest products of its musical laboratory: the premieres of four works that push the boundaries of what is possible with an orchestra. The composers — Laura Schwendinger, Henry Threadgill, Joan La Barbara, Sean Friar — were chosen from a nationwide search. George Manahan conducts. At 7:30 p.m., Zankel Hall, Carnegie Hall , (212) 247-7800, carnegiehall.org; $40 and $50. (Tommasini)
Mario Davidovsky (Friday) A pioneer in the melding of electronic and acoustic music, Mario Davidovsky is the subject of an installment in the Miller Theater’s Composer Portraits series. The program, performed by the International Contemporary Ensemble, includes two of his Synchronisms pieces — Nos. 9 and 12 — as well as his Festino No. 1, Festino Notturno (Festino No. 2), Chacona, Quartetto No. 2 and Romancero. At 8 p.m., Miller Theater, Broadway at 116th Street, Morningside Heights , (212) 854-7799, millertheatre.com; $25. (Kozinn)
? Ecstatic Music Festival (Saturday and Wednesday) This vital new series illuminates the growing bonds between musicians active in contemporary classical music and progressive pop. On Saturday, two bright young performing composers, Timothy Andres and Gabriel Kahane, pay homage to Ives, a maverick forebear. And on Wednesday, Nadia Sirota, a violist near the center of this upstart movement, collaborates with Thomas Bartlett, a singer and keyboardist who works under the name Doveman, and Owen Pallett, a singer and violinist formerly known as Final Fantasy. At 7:30 p.m., Merkin Concert Hall, 129 West 67th Street, Manhattan , (212) 501-3330, kaufman-center.org; $25, $15 for students. (Smith)
Annie Gosfield (Friday and Saturday) In her latest project, “Daughters of the Industrial Revolution,” Annie Gosfield draws both on her family roots as a sort of compositional strategy. Her grandfather, a junk dealer on the Lower East side, sold scrap metal, among other things. Ms. Gosfield has, in recent years, built her work of sounds she recorded in factories and industrial sites, and in this work she functions as a high-tech, updated, musical version of her grandfather. She performs the work on a sampling keyboard with her band, which includes the guitarist Roger Kleier and the drummer Ches Smith, along with a few guests, the cellist Felix Fan, the percussionist Alex Lipowski and the pianist Stephen Gosling. At 8 p.m., the Kitchen, 512 West 19th Street, Chelsea , (212) 255-5793, Ext. 11, thekitchen.org; $10. (Kozinn)
Tully Scope Festival (Friday, Saturday, Monday, Wednesday and Thursday) Les Percussions de Strasbourg ranges throughout Alice Tully Hall in works by Gérard Grisey on Friday and Xenakis on Saturday. On Monday, Tyondai Braxton, a composer and multi-instrumentalist formerly active in the art-rock band Battles, works with the Wordless Music Orchestra. The vibrant string quartet Brooklyn Rider renews its partnership with the Iranian spike-fiddle player Kayhan Kalhor on Wednesday. On Thursday the Canadian pianist Louis Lortie plays Lizst’s complete “Années de Pèlerinage.” Friday, Saturday, Monday and Wednesday at 7:30 p.m., Thursday at 7 p.m.; Alice Tully Hall, Lincoln Center , (212) 721-6500, tullyscope.org; $35 to $45 on Friday and Saturday, $25 to $50 on Monday, $35 to $50 on Wednesday, $45 to $75 on Thursday. (Smith)