Background: 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.
Context: 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.
Question: What is his theory?
Answer: ). He opens the book with an overview of music history, and argues that Western music began to suffer from the time of Bach,

Background: Woodes Rogers was the eldest son and heir of Woods Rogers, a successful merchant captain. Woodes Rogers spent part of his childhood in Poole, England, where he likely attended the local school; his father, who owned shares in many ships, was often away nine months of the year with the Newfoundland fishing fleet. Sometime between 1690 and 1696, Captain Rogers moved his family to Bristol. In November 1697, Woodes Rogers was apprenticed to Bristol mariner John Yeamans, to learn the profession of a sailor.
Context: The ships then went to the Dutch port of Batavia in what is now Indonesia, where Rogers underwent surgery to remove a musket ball from the roof of his mouth, and the expedition disposed of the less seaworthy of the two Spanish prizes. Dealing with the Dutch there constituted a violation of the British East India Company's monopoly. When the ships finally dropped anchor in the Thames River on 14 October 1711, a legal battle ensued, with the investors paying the East India Company PS6,000 (about PS820,000 at today's values) as settlement for their claim for breach of monopoly, about four percent of what Rogers brought back. The investors approximately doubled their money, while Rogers gained PS1,600 (now worth perhaps PS218,700) from a voyage which disfigured him and cost him his brother, who was killed in a battle in the Pacific. The money was probably less than he could have made at home, and was entirely absorbed by the debts his family had incurred in his absence. However, the long voyage and the capture of the Spanish ship made Rogers a national hero. Rogers was the first Englishman, in circumnavigating the globe, to have his original ships and most of his crew survive.  After his voyage, he wrote an account of it, titled A Cruising Voyage Round the World. Edward Cooke, an officer aboard Duchess, also wrote a book, A Voyage to the South Sea and Round the World, and beat Rogers to print by several months. Rogers' book was much more successful, with many readers fascinated by the account of Selkirk's rescue, which Cooke had slighted. Among those interested in Selkirk's adventure was Daniel Defoe, who appears to have read about it, and fictionalised the story as Robinson Crusoe.  While Rogers' book enjoyed financial success, it had a practical purpose--to aid British navigators and possible colonists. Much of Rogers' introduction is devoted to advocacy for the South Seas trade. Rogers notes that had there been a British colony in the South Seas, he would not have had to worry about food supplies for his crew. A third of Rogers' book is devoted to detailed descriptions of the places that he explored, with special emphasis on "such [places] as may be of most use for enlarging our trade". He describes the area of the River Plate in detail because it lay "within the limits of the South Sea Company", whose schemes had not yet burst into financial scandal. Rogers' book was carried by such South Pacific navigators as Admiral George Anson and privateering captains John Clipperton and George Shelvocke.
Question: Are there any other interesting aspects about this article?
Answer:
After his voyage, he wrote an account of it, titled A Cruising Voyage Round the World.