Background: Carlos Santana audio (born July 20, 1947) is a Mexican and American musician who first became famous in the late 1960s and early 1970s with his band, Santana, which pioneered a fusion of rock and Latin American jazz. The band's sound featured his melodic, blues-based guitar lines set against Latin and African rhythms featuring percussion instruments such as timbales and congas not generally heard in rock music. Santana continued to work in these forms over the following decades. He experienced a resurgence of popularity and critical acclaim in the late 1990s.
Context: Carlos Santana's distinctive guitar tone is produced by PRS Santana signature guitars plugged into multiple amplifiers. The amps consist of a Mesa Boogie Mark I, Dumble Overdrive Reverb and more recently a Bludotone amplifier. Santana compares the tonal qualities of each amplifier to that of a singer producing head/nasal tones, chest tones, and belly tones. A three-way amp switcher is employed on Carlos's pedal board to enable him to switch between amps. Often the unique tones of each amplifier are blended together, complementing each other producing a richer tone. He also put the "Boogie" in Mesa Boogie. Santana is credited with coining the popular Mesa amplifier name when he tried one and exclaimed, "That little thing really Boogies!" Specifically, Santana combines a Mesa/Boogie Mark I head running through a Boogie cabinet with Altec 417-8H (or recently JBL E120s) speakers, and a Dumble Overdrive Reverb and/or a Dumble Overdrive Special running through a Brown or Marshall 4x12 cabinet with Celestion G12M "Greenback" speakers, depending on the desired sound. Shure KSM-32 microphones are used to pick up the sound, going to the PA. Additionally, a Fender Cyber-Twin Amp is mostly used at home. During his early career Santana used a GMT transistor amplifier stack and a silverface Fender Twin. The GMT 226A rig was used at the Woodstock concert as well as during recording Santana's debut album. During this era Santana had also begun to use the Fender Twin, which was also used on the debut and proceedingly at the recording sessions of Abraxas.
Question: Are there any other interesting aspects about this article?
Answer: A three-way amp switcher is employed on Carlos's pedal board to enable him to switch between amps.

Question:
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.
Partch made public his theories in his book Genesis of a Music (1947). He opens the book with an overview of music history, and argues that Western music began to suffer from the time of Bach, after which twelve-tone equal temperament was adopted to the exclusion of other tuning systems, and abstract, instrumental music became the norm. Partch sought to bring vocal music back to prominence, and adopted tunings and scales he believed more suitable to singing. Inspired by Sensations of Tone, Hermann von Helmholtz's book on acoustics and the perception of sound, Partch based his music strictly on just intonation. He tuned his instruments using the overtone series, and extended it past the twelfth partial. This allowed for a larger number of smaller, unequal intervals than found in the Western classical music tradition's twelve-tone equal temperament. Partch's tuning is often classed as microtonality, as it allowed for intervals smaller than 100 cents, though Partch did not conceive his tuning in such a context. Instead, he saw it as a return to pre-Classical Western musical roots, in particular to the music of the ancient Greeks. By taking the principles he found in Helmholtz's book, he expanded his tuning system until it allowed for a division of the octave into 43 tones based on ratios of small integers. Partch uses the terms Otonality and Utonality to describe chords whose pitch classes are the harmonics or subharmonics of a given fixed tone. These six-tone chords function in Partch's music much the same that the three-tone major and minor chords (or triads) do in classical music. The Otonalities are derived from the overtone series, and the Utonalities from the undertone series.
Answer this question using a quote from the text above:

what are some of his other theories?

Answer:
Partch based his music strictly on just intonation. He tuned his instruments using the overtone series, and extended it

Problem: Background: Randy Randall Rudy Quaid (born October 1, 1950) is an American film and television actor and Academy Award nominee known for his roles in both serious drama and light comedy. He was nominated for a Golden Globe Award, BAFTA Award and an Academy Award for his role in The Last Detail in 1973. In 1978 he co-starred as a prisoner in Midnight Express. Quaid also won a Golden Globe and was nominated for an Emmy Award for his portrayal of U.S. President Lyndon Johnson in LBJ:
Context: In 2004, Quaid appeared on stage undertaking the starring role of Frank in the world premiere of Sam Shepard's The God of Hell, produced by the New School University at the Actors Studio Drama School in New York. In The God of Hell, Quaid's portrayal of Frank, a Wisconsin dairy farmer whose home is infiltrated by a dangerous government operative who wants to take over his farm, was well-received and -reviewed by New York City's top theatre critics. It marked the second time that Quaid starred in a Shepard play, the first being the long running Broadway hit True West. In February 2008, a five-member hearing committee of Actors' Equity Association, the labor union representing American stage actors, banned Quaid for life and fined him more than $81,000. The charges that brought the sanctions originated in a Seattle production of Lone Star Love, a Western-themed adaptation of Shakespeare's The Merry Wives of Windsor, in which Quaid played the lead role of Falstaff. The musical was scheduled to come to Broadway, but producers cancelled it. According to the New York Post, all 26 members of the musical cast brought charges that Quaid "physically and verbally abused his fellow performers" and that the show closed rather than continuing to Broadway because of Quaid's "oddball behavior". Quaid's lawyer, Mark Block, said the charges were false, and that one of the complaining actors had said the action was driven by "the producers who did not want to give Randy his contractual rights to creative approval ... or financial participation ..." Block said that Quaid had left the union before the musical started, making the ban moot, and that Quaid only participated in the hearing because he wanted due process. Quaid's statement on the charges was "I am guilty of only one thing: giving a performance that elicited a response so deeply felt by the actors and producers with little experience of my creative process that they actually think I am Falstaff."
Question: why was he banned?
Answer:
The charges that brought the sanctions originated in a Seattle production of Lone Star Love, a Western-themed adaptation of Shakespeare's