this tour have proven to be classics of free jazz. During the same period, Bley was touring and recording with tenor saxophonist Sonny Rollins, which culminated with the RCA Victor album Sonny Meets Hawk! with tenor saxophonist Coleman Hawkins. Bley's solo on "All The Things You Are" from this album has been called "the shot heard around the world" by Pat Metheny. In 1964 Bley was instrumental in the formation of the Jazz Composers Guild, a co-operative organization which brought together many free jazz musicians in New York: Bill Dixon, Roswell Rudd, Cecil Taylor, Archie Shepp, Carla Bley, Michael Mantler, Sun Ra, and others. The guild organized weekly concerts and created a forum for the "October Revolution" of 1964. The influential recording, "Turning Point", released by Improvising Artists in 1975, was recorded in 1964 when Bley brought John Gilmore, Gary Peacock, and Paul Motian to the University of Washington. In the late 1960s, Bley pioneered the use of the ARP and Moog synthesizers, doing the first live synthesizer performance at Philharmonic Hall in New York City on December 26, 1969. This "Bley-Peacock Synthesizer Show" performance, a group with singer/composer Annette Peacock, who had written much of his personal repertoire since 1964, was followed by her playing on the recordings Dual Unity (credited to "Annette & Paul Bley") and Improvisie. The latter was a French release of two extended improvisational tracks with Bley on synthesizers, Peacock's voice and keyboards, and percussion by Dutch free jazz drummer Han Bennink, who had also appeared on part of Dual Unity. 1970s In 1972 Manfred Eicher released Bley's first solo piano recording, Open, to Love, on ECM Records. Bley also released the trio album, Paul Bley & Scorpio for Milestone Records in 1972 on which he plays two electric pianos and Arp synthesizer. In 1974, Bley and video artist Carol Goss, his second wife, founded the production company Improvising Artists, known as IAI Records & Video . The label issued acoustic recordings by many of the most creative improvisers of the twentieth century as well as the electric quartet album, Jaco, the debut recording of Pat Metheny on electric guitar and Jaco Pastorius on electric bass, with Bley on electric piano and Bruce Ditmas on drums. IAI records and videos include performances by Jimmy Giuffre, Lee Konitz, Dave Holland, Marion Brown, Gunter Hampel, Lester Bowie, Steve Lacy, Ran Blake, Perry Robinson, Naná Vasconcelos, Badal Roy,