Hall Overton before he enrolled at Juilliard to work with William Bergsma and Vincent Persichetti (1958–1961). Subsequently, he attended Mills College in Oakland, California, where he studied with Luciano Berio and Darius Milhaud (1961–1963) and earned a master's degree in composition. At Mills, Reich composed Melodica for melodica and tape, which appeared in 1986 on the three-LP release Music from Mills. Reich worked with the San Francisco Tape Music Center along with Pauline Oliveros, Ramon Sender, Morton Subotnick, Phil Lesh and Terry Riley. He was involved with the premiere of Riley's In C and suggested the use of the eighth note pulse, which is now standard in performance of the piece. Career 1960s Reich's early forays into composition involved experimentation with twelve-tone composition, but he found the rhythmic aspects of the number twelve more interesting than the pitch aspects. Reich also composed film soundtracks for Plastic Haircut (1963), Oh Dem Watermelons (1965), and Thick Pucker (1965), three films by Robert Nelson. The soundtrack of Plastic Haircut, composed in 1963, was a short tape collage, possibly Reich's first. The Watermelons soundtrack used two 19th-century minstrel tunes as its basis, and used repeated phrasing together in a large five-part canon. The music for Thick Pucker arose from street recordings Reich made walking around San Francisco with Nelson, who filmed in black and white 16mm. This film no longer survives. A fourth film from 1965, about 25 minutes long and tentatively entitled "Thick Pucker II", was assembled by Nelson from outtakes of that shoot and more of the raw audio Reich had recorded. Nelson was not happy with the resulting film and never showed it. Reich was influenced by fellow minimalist Terry Riley, whose work In C combines simple musical patterns, offset in time, to create a slowly shifting, cohesive whole. Reich adopted this approach to compose his first major work, It's Gonna Rain. Composed in 1965, the piece used a fragment of a sermon about the end of the world given by a Black Pentecostal street-preacher known as Brother Walter. Reich built on his early tape work, transferring the last three words of the fragment, "it's gonna rain!", to multiple tape loops that gradually move out of phase with one another. The 13-minute Come Out (1966) uses similarly manipulated recordings of a single spoken line given by Daniel Hamm, one of the falsely accused Harlem Six, who was severely injured by police.