paragraph_text: The Gorleston Psalter (British Library Manuscript Additional 49622) is a 14th-century manuscript notable for containing early music instruction and for its humorous marginalia.

paragraph_text: Using his own system, Hampartsoum Limondjian transcribed most of 18th century Turkish music compositions in a collection of six books, which he presented to Selim III. Only two of the originals survive to date and are preserved at the Istanbul Municipal Conservatory Library. As the dominant notation for Turkish and Armenian music, the Hamparsum notation was instrumental in the transcription and survival of thousands of pieces of music, and was surpassed only in modern times in its use for Turkish classical music. The notation system is still in use by the Armenian Apostolic Church.

paragraph_text: The waterwheel appeared in Chinese records during the Han. As mentioned by Huan Tan in about 20 AD, they were used to turn gears that lifted iron trip hammers, and were used in pounding, threshing and polishing grain. However, there is no sufficient evidence for the watermill in China until about the 5th century. The Nanyang Commandery Administrator Du Shi (d. 38 AD) created a waterwheel-powered reciprocator that worked the bellows for the smelting of iron. Waterwheels were also used to power chain pumps that lifted water to raised irrigation ditches. The chain pump was first mentioned in China by the philosopher Wang Chong in his 1st-century-AD Balanced Discourse.

paragraph_text: Middle C (the fourth C key from left on a standard 88 - key piano keyboard) is designated C in scientific pitch notation, the most commonly recognized in auditory science, while both C and the Helmholtz designation c 'are used in musical studies. Other note - octave systems, including those used by some makers of digital music keyboards, may refer to Middle C differently. In MIDI, Middle C is note number 60.

paragraph_text: Geometrically - shaped minigolf courses made of artificial materials (carpet) began to emerge during the early 20th century. The earliest documented mention of such a course is in the 8 June 1912 edition of The Illustrated London News, which introduces a minigolf course called Gofstacle.

paragraph_text: It is in this time that the notation of music on a staff and other elements of musical notation began to take shape. This invention made possible the separation of the composition of a piece of music from its transmission; without written music, transmission was oral, and subject to change every time it was transmitted. With a musical score, a work of music could be performed without the composer's presence. The invention of the movable-type printing press in the 15th century had far-reaching consequences on the preservation and transmission of music.

paragraph_text: Melodifestivalen 1973 was the selection for the 14th song to represent Sweden at the Eurovision Song Contest. It was the 13th time that this system of picking a song had been used. 10 songwriters were selected by SVT for the competition. The final was broadcast on TV1 but was not broadcast on radio.

paragraph_text: The regions in their inventory were Assyria, Chaldea, Mesopotamia, Persia, Armenia, Egypt, Arabia, Syria, Palestine, Ethiopia, Caucasus, Libya, Anatolia and Abyssinia. Explicitly excluded is India. No mention is made of the Balkans.

paragraph_text: The use of paper for hygiene has been recorded in China in the 6th century AD, with specifically manufactured toilet paper being mass - produced in the 14th century. Modern commercial toilet paper originated in the 19th century, with a patent for roll - based dispensers being made in 1883.

paragraph_text: A number of writing systems have been used over the years for transcribing the language. Of these, the Somali alphabet is the most widely used, and has been the official writing script in Somalia since the government of former President of Somalia Mohamed Siad Barre formally introduced it in October 1972. The script was developed by the Somali linguist Shire Jama Ahmed specifically for the Somali language, and uses all letters of the English Latin alphabet except p, v and z. Besides Ahmed's Latin script, other orthographies that have been used for centuries for writing Somali include the long-established Arabic script and Wadaad's writing. Indigenous writing systems developed in the twentieth century include the Osmanya, Borama and Kaddare scripts, which were invented by Osman Yusuf Kenadid, Abdurahman Sheikh Nuur and Hussein Sheikh Ahmed Kaddare, respectively.

paragraph_text: Music of the Old Serbia is a debut vinyl album by Ensemble Renaissance, released in 1983 on the PGP RTB label (also released as an audio cassette). It is also Ensemble's first album with early music of Serbia. They will revisit the theme of Serbian Medieval songs and dances on the Roots of the Balkan, and some of the material from this album will be remastered on the Music of Old Serbia - Chants from 14th to the 18th century dedicated exclusively to the Medieval Serbian chant.

paragraph_text: Some critics express the opinion that it is only from the mid-19th century, and especially in the 20th century, that the score began to hold such a high significance. Previously, improvisation (in preludes, cadenzas and ornaments), rhythmic flexibility (e.g., tempo rubato), improvisatory deviation from the score and oral tradition of playing was integral to the style. Yet in the 20th century, this oral tradition and passing on of stylistic features within classical music disappeared. Instead, musicians tend to use just the score to play music. Yet, even with the score providing the key elements of the music, there is considerable controversy about how to perform the works. Some of this controversy relates to the fact that this score-centric approach has led to performances that emphasize metrically strict block-rhythms (just as the music is notated in the score).

paragraph_text: The key characteristic of classical music that distinguishes it from popular music and folk music is that the repertoire tends to be written down in musical notation, creating a musical part or score. This score typically determines details of rhythm, pitch, and, where two or more musicians (whether singers or instrumentalists) are involved, how the various parts are coordinated. The written quality of the music has enabled a high level of complexity within them: J.S. Bach's fugues, for instance, achieve a remarkable marriage of boldly distinctive melodic lines weaving in counterpoint yet creating a coherent harmonic logic that would be impossible in the heat of live improvisation. The use of written notation also preserves a record of the works and enables Classical musicians to perform music from many centuries ago. Musical notation enables 2000s-era performers to sing a choral work from the 1300s Renaissance era or a 1700s Baroque concerto with many of the features of the music (the melodies, lyrics, forms, and rhythms) being reproduced.

paragraph_text: In 1981, the MUSE system was demonstrated for the first time in the United States, using the same 5:3 aspect ratio as the Japanese system. Upon visiting a demonstration of MUSE in Washington, US President Ronald Reagan was impressed and officially declared it "a matter of national interest" to introduce HDTV to the US.

paragraph_text: Indian astronomer and mathematician Aryabhata (476-550), in his Aryabhatiya (499) introduced a number of trigonometric functions (including sine, versine, cosine and inverse sine), trigonometric tables, and techniques and algorithms of algebra. In 628 AD, Brahmagupta suggested that gravity was a force of attraction. He also lucidly explained the use of zero as both a placeholder and a decimal digit, along with the Hindu-Arabic numeral system now used universally throughout the world. Arabic translations of the two astronomers' texts were soon available in the Islamic world, introducing what would become Arabic numerals to the Islamic World by the 9th century. During the 14th–16th centuries, the Kerala school of astronomy and mathematics made significant advances in astronomy and especially mathematics, including fields such as trigonometry and analysis. In particular, Madhava of Sangamagrama is considered the "founder of mathematical analysis".

paragraph_text: From 1901 to 1938 he was head of the prestigious Carlsberg Laboratory, Copenhagen. While working at the Carlsberg Laboratory he studied the effect of ion concentration on proteins, and because the concentration of hydrogen ions was particularly important, he introduced the pH-scale as a simple way of expressing it in 1909. The article in which he introduced the scale (using the notation pH) described two methods for measuring acidity which Sørensen and his students had refined. The first method was based on electrodes, whereas the second involved comparing the colours of samples and a preselected set of indicators.

paragraph_text: On the continent of Europe, Anno Domini was introduced as the era of choice of the Carolingian Renaissance by the English cleric and scholar Alcuin in the late eighth century. Its endorsement by Emperor Charlemagne and his successors popularizing the use of the epoch and spreading it throughout the Carolingian Empire ultimately lies at the core of the system's prevalence. According to the Catholic Encyclopedia, popes continued to date documents according to regnal years for some time, but usage of AD gradually became more common in Roman Catholic countries from the 11th to the 14th centuries. In 1422, Portugal became the last Western European country to switch to the system begun by Dionysius. Eastern Orthodox countries only began to adopt AD instead of the Byzantine calendar in 1700 when Russia did so, with others adopting it in the 19th and 20th centuries.

paragraph_text: "Beto Rockfeller" is often mentioned as a turning point for the telenovela format in Brazil. It abandoned the melodramatic, artificial tone of previous shows for a more naturalistic approach, with the presence of a morally ambiguous protagonist and the use of colloquial language; characters would often mention actual news and gossips of the time. It also was the first telenovela to use contemporary pop hit songs in its soundtrack, rather than purely orchestral music.

paragraph_text: The main representatives of the new style, often referred to as ars nova as opposed to the ars antiqua, were the composers Philippe de Vitry and Guillaume de Machaut. In Italy, where the Provençal troubadours had also found refuge, the corresponding period goes under the name of trecento, and the leading composers were Giovanni da Cascia, Jacopo da Bologna and Francesco Landini. Prominent reformer of Orthodox Church music from the first half of 14th century was John Kukuzelis; he also introduced a system of notation widely used in the Balkans in the following centuries.

paragraph_text: The Bâton à feu, or Baston à feu (French for "Fire stick"), is a type of hand cannon developed in the 14th century in Western Europe. This weapon type corresponds to the portable artillery of the second half of 14th century.

Question: Who introduced a system of musical notation used in the region that has no mention in the 14th century?
Answer: John Kukuzelis