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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.
In modern usage, recorders not in C or F are alternatively referred to using the name of the closest instrument in C or F, followed by the lowest note. For example, a recorder with lowest note G 4 may be known as a G-alto or alto in G, a recorder with lowest note D 5 (also "sixth flute") as a D-soprano or soprano in D, and a recorder in G 3 as ...
Converter: Frequencies to note name, ± cents; Note names, keyboard positions, frequencies and MIDI numbers; Music notation systems − Frequencies of equal temperament tuning – The English and American system versus the German system; Frequencies of musical notes; Learn How to Read Sheet Music; Free music paper for printing and downloading
The soprano recorder is an octave above the level of the human soprano voice. Its lowest note is C 5 , and the normal range is C 5 –D 7 , but expert players achieve notes up to G 7 . Compositions for soprano recorder are usually notated an octave lower than they sound.
The purpose of this adjustment is to move the 12 notes within a smaller range of frequency, namely within the interval between the base note D and the D above it (a note with twice its frequency). This interval is typically called the basic octave (on a piano keyboard, an octave has only 12 keys). This dates to antiquity: in Ancient Mesopotamia ...
In music, an interval ratio is a ratio of the frequencies of the pitches in a musical interval. For example, a just perfect fifth (for example C to G) is 3:2 ( Play ⓘ ), 1.5, and may be approximated by an equal tempered perfect fifth ( Play ⓘ ) which is 2 7/12 (about 1.498).
Scientific pitch notation is often used to specify the range of an instrument. It provides an unambiguous means of identifying a note in terms of textual notation rather than frequency, while at the same time avoiding the transposition conventions that are used in writing the music for instruments such as the clarinet and guitar.
This variation led in the 18th century to an increase in the use of equal temperament, in which the frequency ratio between each pair of adjacent notes on the keyboard was made equal. In other words, the ratio between two notes that were one octave apart was kept pure, and the twelve notes in between the octave were equally spaced from one ...