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  2. A440 (pitch standard) - Wikipedia

    en.wikipedia.org/wiki/A440_(pitch_standard)

    A440, piano and violin. A440 (also known as Stuttgart pitch[ 1 ]) is the musical pitch corresponding to an audio frequency of 440 Hz, which serves as a tuning standard for the musical note of A above middle C, or A4 in scientific pitch notation. It is standardized by the International Organization for Standardization as ISO 16.

  3. Guitar tunings - Wikipedia

    en.wikipedia.org/wiki/Guitar_tunings

    D Tuning, also called One Step Lower, Whole Step Down, Full Step or D Standard, is another alternative. Each string is lowered by a whole tone (two semitones) resulting in D-G-C-F-A-D . It is used mostly by heavy metal bands to achieve a heavier, deeper sound, and by blues guitarists, who use it to accommodate string bending and by 12-string ...

  4. List of guitar tunings - Wikipedia

    en.wikipedia.org/wiki/List_of_guitar_tunings

    Sevendust uses this tuning a half-step down on "Home". Periphery uses this tuning, but tuned 1 step down on "Reptile", The band Architects also use this tuning, but tuned one and a half step down, since their album Lost Forever // Lost Together released in 2014 and Wage War tuned 2 steps down on several songs [57]

  5. Musical tuning - Wikipedia

    en.wikipedia.org/wiki/Musical_tuning

    Tuning is the process of adjusting the pitch of one or many tones from musical instruments to establish typical intervals between these tones. Tuning is usually based on a fixed reference, such as A = 440 Hz. The term " out of tune " refers to a pitch/tone that is either too high (sharp) or too low (flat) in relation to a given reference pitch.

  6. Piano tuning - Wikipedia

    en.wikipedia.org/wiki/Piano_tuning

    Piano tuning is the process of adjusting the tension of the strings of an acoustic piano so that the musical intervals between strings are in tune. The meaning of the term 'in tune', in the context of piano tuning, is not simply a particular fixed set of pitches. Fine piano tuning requires an assessment of the vibration interaction among notes ...

  7. Piano key frequencies - Wikipedia

    en.wikipedia.org/wiki/Piano_key_frequencies

    Piano key frequencies. 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 ...

  8. Concert pitch - Wikipedia

    en.wikipedia.org/wiki/Concert_pitch

    A written C, top, on a B ♭ clarinet sounds a concert B ♭, bottom. Concert pitch is the pitch reference to which a group of musical instruments are tuned for a performance. Concert pitch may vary from ensemble to ensemble, and has varied widely over time. The ISO defines international standard pitch as A440, setting 440 Hz as the frequency ...

  9. Pythagorean tuning - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_tuning

    Pythagorean tuning is a system of musical tuning in which the frequency ratios of all intervals are determined by choosing a sequence of fifths [2] which are "pure" or perfect, with ratio :. This is chosen because it is the next harmonic of a vibrating string, after the octave (which is the ratio 2 : 1 {\displaystyle 2:1} ), and hence is the ...