Glenn Branca's compositions center around multiple guitars -- four or more, heavily amplified -- augmented by a rock-based rhythm section of drums and bass. In later works, the composer began adding other instruments, including mallet guitar, keyboards, and occasionally a second drummer. Branca's minimalist compositions frequently require unusual guitar tunings -- more recent works have them strung with two sets of three strings tuned an octave apart. Many of downtown New York City's more notable experimental guitarists have been a part of his ensemble, including Thurston Moore and Lee Ranaldo of the punk rock band Sonic Youth. Branca studied performing arts at Emerson College in Boston.