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This is a list of the fundamental frequencies in hertz (cycles per second) of the keys of a modern 88-key standard or 108-key extended piano in twelve-tone equal temperament, with the 49th key, the fifth A (called A 4), tuned to 440 Hz (referred to as A440). [1] [2] Every octave is made of twelve steps called semitones.
A Hammond C-3 organ The Hammond organ is an electric organ invented by Laurens Hammond and John M. Hanert. The instrument was first manufactured in 1935. It has two manuals along with a set of bass pedals. A variety of models have been produced. The most popular is the B-3, produced between 1954 and 1974. The instrument was designed to replace the pipe organ in churches, and early adopters ...
Hammond's New B3 contains similar switches to emulate this effect, though it is a digital instrument. ... which run on 110 V/60 Hz and 240 V/50 Hz AC mains ...
B3 was an American pop boy band from New York City. They were formed in 2001 and were first produced by O-Jay of German dance band Real McCoy . Original members were Timothy Andrew Cruz (2001–2004), John Steven Sutherland (2001–2004) and Rod Michael (2001–2002).
Standard tuning defines the string pitches as E (82.41 Hz), A (110 Hz), D (146.83 Hz), G (196 Hz), B (246.94 Hz), and E (329.63 Hz), from the lowest pitch (low E 2) to the highest pitch (high E 4). Standard tuning is used by most guitarists, and frequently used tunings can be understood as variations on standard tuning.
B3 (stock exchange), the Bochvar logic in calculus; B03, Alekhine's Defence chess code; B3: Battle by the Bay, a 1996 Street Fighter tournament; B3 oil field, an oil and gas field in the Baltic sea; Model B3 chair, a 1925 German Wassili designer chair; A subclass of B-class stars in stellar classification
The SI unit of frequency is the hertz (Hz). It is the property of sound that most determines pitch. [1] The generally accepted standard hearing range for humans is 20 to 20,000 Hz. [2] [3] [4] In air at atmospheric pressure, these represent sound waves with wavelengths of 17 metres (56 ft) to 1.7 centimetres (0.67 in).
In telephony, the usable voice frequency band ranges from approximately 300 to 3400 Hz. [2] It is for this reason that the ultra low frequency band of the electromagnetic spectrum between 300 and 3000 Hz is also referred to as voice frequency, being the electromagnetic energy that represents acoustic energy at baseband.