Answer the question at the end by quoting:

Slayer is an American thrash metal band from Huntington Park, California. The band was formed in 1981 by vocalist/bassist Tom Araya and guitarists Kerry King and Jeff Hanneman. Slayer's fast and aggressive musical style made them one of the founding "big four" bands of thrash metal, alongside Metallica, Megadeth and Anthrax. Slayer's current lineup comprises King, Araya, drummer Paul Bostaph and guitarist Gary Holt.
Following the success of Hell Awaits, Slayer was offered a recording contract with Russell Simmons and Rick Rubin's newly founded Def Jam Records, a largely hip hop-based label. The band accepted and with an experienced producer and major label recording budget, the band underwent a sonic makeover for their third album Reign in Blood resulting in shorter, faster songs with clearer production. Gone were the complex arrangements and long songs featured on Hell Awaits, ditched in favor of stripped down, hardcore punk influenced song structures.  Def Jam's distributor, Columbia Records, refused to release the album due to the song "Angel of Death" which detailed Holocaust concentration camps and the human experiments conducted by Nazi physician Josef Mengele. The album was distributed by Geffen Records on October 7, 1986. However, due to the controversy, Reign in Blood did not appear on Geffen Records' release schedule. Although the album received virtually no radio airplay, it became the band's first to enter the Billboard 200, debuting at number 94, and the band's first album certified gold in the United States.  In October 1986, Slayer embarked on the Reign in Pain world tour, with Overkill in the US, and Malice in Europe. The band was added as the opening act on W.A.S.P.'s US tour, but just one month in, drummer Lombardo left the band: "I wasn't making any money. I figured if we were gonna be doing this professionally, on a major label, I wanted my rent and utilities paid." To continue with the tour, Slayer enlisted Tony Scaglione of Whiplash. However, Lombardo was convinced by his wife to return in 1987. At the insistence of Rubin, Slayer recorded a cover version of Iron Butterfly's "In-A-Gadda-Da-Vida" for the film Less Than Zero. Although the band was not happy with the final product, Hanneman deeming it "a poor representation of Slayer" and King labeling it "a hunk of shit," it was one of their first songs to garner radio airplay.

Did they play any concerts during this time?

In October 1986, Slayer embarked on the Reign in Pain world tour, with Overkill in the US, and Malice in Europe.



Answer the question at the end by quoting:

Harry Partch (June 24, 1901 - September 3, 1974) was an American composer, music theorist, and creator of musical instruments. He composed using scales of unequal intervals in just intonation, and was one of the first 20th-century composers in the West to work systematically with microtonal scales. He built custom-made instruments in these tunings on which to play his compositions, and described his theory and practice in his book Genesis of a Music (1947). Partch composed with scales dividing the octave into 43 unequal tones derived from the natural harmonic series; these scales allowed for more tones of smaller intervals than in standard Western tuning, which uses twelve equal intervals to the octave.
Supported by Guggenheim and university grants, Partch took up residence at the University of Wisconsin from 1944 until 1947. This was a productive period, in which he lectured, trained an ensemble, staged performances, released his first recordings, and completed his book, now called Genesis of a Music. Genesis was completed in 1947 and published in 1949 by the University of Wisconsin Press. He left the university, as it never accepted him as a member of the permanent staff, and there was little space for his growing stock of instruments.  In 1949, pianist Gunnar Johansen allowed Partch to convert a smithy on his ranch to a studio. Partch worked there with support from the Guggenheim Foundation, and did recordings, primarily of his Eleven Intrusions (1949-1950). He was assisted for six months by composer Ben Johnston, who performed on Partch's recordings. In spring 1951, Partch moved to Oakland for health reasons, and prepared for a production of King Oedipus at Mills College, with the support of designer Arch Lauterer. Performances of King Oedipus in March were extensively reviewed, but a planned recording was blocked by the Yeats estate, which refused to grant permission to use Yeats's translation.  In February 1953, Partch founded the studio Gate 5 in an abandoned shipyard in Sausalito, California, where he composed, built instruments and staged performances. Subscriptions to raise money for recordings were organized by the Harry Partch Trust Fund, an organization put together by friends and supporters. The recordings were sold via mail order, as were later releases on the Gate 5 Records label. The money raised from these recordings became his main source of income. Partch's three Plectra and Percussion Dances, Ring Around the Moon (1949-1950), Castor and Pollux, and Even Wild Horses, premiered on Berkeley's KPFA radio in November 1953.  After completing The Bewitched in January 1955, Partch tried to find the means to put on a production of it. Ben Johnston introduced Danlee Mitchell to Partch at the University of Illinois; Mitchell later became Partch's heir. In March 1957, with the help of Johnston and the Fromm Foundation, The Bewitched was performed at the University of Illinois, and later at Washington University in St. Louis, though Partch was displeased with choreographer Alwin Nikolais's interpretation. Later in 1957, Partch provided the music for Madeline Tourtelot's film Windsong, the first of six film collaborations between the two. From 1959 to 1962, Partch received further appointments from the University of Illinois, and staged productions of Revelation in the Courthouse Park in 1961 and Water! Water! in 1962. Though these two works were based, as King Oedipus had been, on Greek mythology, they modernized the settings and incorporated elements of popular music. Partch had support from several departments and organizations at the university, but continuing hostility from the music department convinced him to leave and return to California.

when was his book released?
Genesis was completed in 1947 and published in 1949 by the University of Wisconsin Press.