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Polyphon Records
A Polyphon is a disc-playing music box. The machine was invented in 1870; it was first manufactured by the Polyphon Musikwerke, in Leipzig, Germany, full-scale production having started about 1896 and continuing into the early 20th century. Polyphons were exported all over the world; music was supplied for the English, French, German markets, as well as further afield, with pieces cataloged for the Russian, Polish, and Balkan regions. Polyphon is also a record label as registered by German Polyphon Musikwerke AG in 1908. Polyphon traded under the Polydor label since 1913 with their trademarks Polyphon Musik and Polyphon Record. Polyphon Musikwerke The German company was founded in 1887 in Wahren, Leipzig, as Firma Brachhausen & Riesener, by Gustav Adolf Brachhausen and Ernst Paul Riessner, for manufacturing their 1870 invention mechanical disc-playing music box Polyphon. The company was renamed to Polyphon-Musikwerke AG in 1895. In 1908 Hugo Wünsch was appointed director, but b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total population of over 84 million in an area of , making it the most populous member state of the European Union. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, and France, Luxembourg, Belgium, and the Netherlands to the west. The Capital of Germany, nation's capital and List of cities in Germany by population, most populous city is Berlin and its main financial centre is Frankfurt; the largest urban area is the Ruhr. Settlement in the territory of modern Germany began in the Lower Paleolithic, with various tribes inhabiting it from the Neolithic onward, chiefly the Celts. Various Germanic peoples, Germanic tribes have inhabited the northern parts of modern Germany since classical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pitch (music)
Pitch is a perception, perceptual property that allows sounds to be ordered on a frequency-related scale (music), scale, or more commonly, pitch is the quality that makes it possible to judge sounds as "higher" and "lower" in the sense associated with musical melody, melodies. Pitch is a major auditory system, auditory attribute of musical tones, along with duration (music), duration, loudness, and timbre. Pitch may be quantified as a frequency, but pitch is not a purely objective physical property; it is a subjective Psychoacoustics, psychoacoustical attribute of sound. Historically, the study of pitch and pitch perception has been a central problem in psychoacoustics, and has been instrumental in forming and testing theories of sound representation, processing, and perception in the auditory system. Perception Pitch and frequency Pitch is an auditory sensation in which a listener assigns musical tones to relative positions on a musical scale based primarily on their percep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical Musical Instruments
Mechanical may refer to: Machine * Machine (mechanical), a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement * Mechanical calculator, a device used to perform the basic operations of arithmetic * Mechanical energy, the sum of potential energy and kinetic energy * Mechanical system, a system that manages the power of forces and movements to accomplish a task * Mechanism (engineering), a portion of a mechanical device Other * Mechanical (character), one of several characters in Shakespeare's ''A Midsummer Night's Dream'' * A kind of typeface in the VOX-ATypI classification See also * Machine, especially in opposition to an electronic item * ''Mechanical Animals'', the third full-length studio release by Marilyn Manson * Manufactured or artificial, especially in opposition to a biological or natural component * Automation, using machine decisions and processing instead of human * Mechanization, using machine labor inst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Classical Music
Classical music generally refers to the art music of the Western world, considered to be #Relationship to other music traditions, distinct from Western folk music or popular music traditions. It is sometimes distinguished as Western classical music, as the term "classical music" can also be applied to List of classical and art music traditions, non-Western art musics. Classical music is often characterized by formality and complexity in its musical form and Harmony, harmonic organization, particularly with the use of polyphony. Since at least the ninth century, it has been primarily a written tradition, spawning a sophisticated music notation, notational system, as well as accompanying literature in music analysis, analytical, music criticism, critical, Music history, historiographical, musicology, musicological and Philosophy of music, philosophical practices. A foundational component of Western culture, classical music is frequently seen from the perspective of individual or com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Decca Records
Decca Records is a British record label established in 1929 by Edward Lewis (Decca), Edward Lewis after his acquisition of a gramophone manufacturer, The Decca Gramophone Company. It set up an American subsidiary under the Decca name, which became an independent company just before the Second World War. The American spin-off became a subsidiary of MCA Inc. in 1962. Known for its technical innovations, the British parent company grew to become the second most successful recording company in Britain and celebrated fifty years of existence in 1979, shortly before being sold to PolyGram. Both Decca and its former subsidiary were subsequently acquired by Universal Music. Decca and its American spin-off both built up strong catalogues of popular music. In their first two decades their artists included Gertrude Lawrence, George Formby, Jack Hylton and Vera Lynn in Britain and Bing Crosby, Al Jolson, the Andrews Sisters and the Mills Brothers in the US. Later performers in their popular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kermanshah
Kermanshah is a city in the Central District (Kermanshah County), Central District of Kermanshah province, Kermanshah province, Iran, serving as capital of the province, the county, and the district. The city is from Tehran in the western part of the country. The 2016 Census, National Census measured the population of the city as 946,651 (2025 estimate 1,117,000). Etymology "Kermanshah" derives from the Sasanian Empire, Sasanian-era title ''Kirmanshah'', which translates as "King of Kerman". This title was held by the son of Shapur III, Prince Bahram, who was bestowed with the title upon being appointed governor of the province of Kirman (Sasanian province), Kirman (present-day Kerman Province). Later, in 390, when he had already succeeded his father as Bahram IV, Bahram IV Kirmanshah (388–399), he founded the city and his title was applied to it, i.e. "(City of the) King of Kirman". History Prehistory Because of its antiquity, attractive landscapes, rich culture and Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baghdad
Baghdad ( or ; , ) is the capital and List of largest cities of Iraq, largest city of Iraq, located along the Tigris in the central part of the country. With a population exceeding 7 million, it ranks among the List of largest cities in the Arab world, most populous cities in the Middle East and Arab world and forms 22% of the Demographics of Iraq, country's population. Spanning an area of approximately , Baghdad is the capital of its Baghdad Governorate, governorate and serves as Iraq's political, economic, and cultural hub. Founded in 762 AD by Al-Mansur, Baghdad was the capital of the Abbasid Caliphate and became its most notable development project. The city evolved into a cultural and intellectual center of the Muslim world. This, in addition to housing several key academic institutions, including the House of Wisdom, as well as a multi-ethnic and multi-religious environment, garnered it a worldwide reputation as the "Center of Learning". For much of the Abbasid era, duri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tehran
Tehran (; , ''Tehrân'') is the capital and largest city of Iran. It is the capital of Tehran province, and the administrative center for Tehran County and its Central District (Tehran County), Central District. With a population of around 9.8 million in the city as of 2025, and 16.8 million in the metropolitan area, Tehran is the List of largest cities of Iran, most populous city in Iran and Western Asia, the Largest metropolitan areas of the Middle East, second-largest metropolitan area in the Middle East after Cairo, and the 24th most populous metropolitan area in the world. Greater Tehran includes several municipalities, including, Karaj, Eslamshahr, Shahriar, Tehran province, Shahriar, Qods, Iran, Qods, Malard, Golestan, Tehran, Golestan, Pakdasht, Qarchak, Nasimshahr, Parand, Pardis, Andisheh and Fardis. In the classical antiquity, part of the territory of present-day Tehran was occupied by Rhages (now Ray, Iran, Ray), a prominent Medes, Median city almost entirely des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iraq
Iraq, officially the Republic of Iraq, is a country in West Asia. It is bordered by Saudi Arabia to Iraq–Saudi Arabia border, the south, Turkey to Iraq–Turkey border, the north, Iran to Iran–Iraq border, the east, the Persian Gulf and Kuwait to the Iraq–Kuwait border, southeast, Jordan to Iraq–Jordan border, the southwest, and Syria to Iraq–Syria border, the west. The country covers an area of and has Demographics of Iraq, a population of over 46 million, making it the List of countries by area, 58th largest country by area and the List of countries by population, 31st most populous in the world. Baghdad, home to over 8 million people, is the capital city and the List of largest cities of Iraq, largest in the country. Starting in the 6th millennium BC, the fertile plains between Iraq's Tigris and Euphrates rivers, referred to as Mesopotamia, fostered the rise of early cities, civilisations, and empires including Sumer, Akkadian Empire, Akkad, and Assyria. Known ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persia
Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the northeast, Afghanistan to the east, Pakistan to the southeast, and the Gulf of Oman and the Persian Gulf to the south. With a Ethnicities in Iran, multi-ethnic population of over 92 million in an area of , Iran ranks 17th globally in both List of countries and dependencies by area, geographic size and List of countries and dependencies by population, population. It is the List of Asian countries by area, sixth-largest country entirely in Asia and one of the world's List of mountains in Iran, most mountainous countries. Officially an Islamic republic, Iran is divided into Regions of Iran, five regions with Provinces of Iran, 31 provinces. Tehran is the nation's Capital city, capital, List of cities in Iran by province, largest city and financial ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EBay
eBay Inc. ( , often stylized as ebay) is an American multinational e-commerce company based in San Jose, California, that allows users to buy or view items via retail sales through online marketplaces and websites in 190 markets worldwide. Sales occur either via online auctions or "buy it now" instant sales, and the company charges commissions to sellers upon sales. eBay was founded by Pierre Omidyar in September 1995. It has 132 million yearly active buyers worldwide and handled $73 billion in transactions in 2023, 48% of which were in the United States. In 2023, the company had a take rate (revenue as a percentage of volume) of 13.81%. The company is listed on the Nasdaq Global Select Market and is a component of the S&P 500 and formerly the Nasdaq-100. eBay can be used by individuals, companies and governments to purchase and sell almost any legal, non-controversial item. eBay's auctions use a Vickrey auction (sealed-bid) proxy bid system. Buyers and sellers may r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Motor
An electric motor is a machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a electromagnetic coil, wire winding to generate Laplace force in the form of torque applied on the motor's shaft. An electric generator is mechanically identical to an electric motor, but operates in reverse, converting mechanical energy into electrical energy. Electric motors can be powered by direct current (DC) sources, such as from batteries or rectifiers, or by alternating current (AC) sources, such as a power grid, Inverter (electrical), inverters or electrical generators. Electric motors may also be classified by considerations such as power source type, construction, application and type of motion output. They can be brushed motor, brushed or brushless motor, brushless, single-phase electric power, single-phase, two-phase electric power, two-phase, or three-phase electric p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
