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  2. Piano key frequencies - Wikipedia

    en.wikipedia.org/wiki/Piano_key_frequencies

    Values in bold are exact on an idealized standard piano. Keys shaded gray are rare and only appear on extended pianos. The normal 88 keys were numbered 1–88, with the extra low keys numbered 89–97 and the extra high keys numbered 98–108. A 108-key piano that extends from C 0 to B 8 was first built in 2018 by Stuart & Sons. [4]

  3. Closely related key - Wikipedia

    en.wikipedia.org/wiki/Closely_related_key

    [3] For example, the first movement of Mozart's Piano Sonata No. 7, K. 309, modulates only to closely related keys (the dominant, supertonic, and submediant). [4] Given a major key tonic (I), the related keys are: ii (supertonic, [5] the relative minor of the subdominant) iii (mediant, [5] the relative minor of the dominant)

  4. EBU R 128 - Wikipedia

    en.wikipedia.org/wiki/EBU_R_128

    Loudness Units referenced to full scale Loudness measurement unit on an absolute scale, K-weighted, [3] relative to a digital scale (the upper limit of which is 0 dBFS). Equivalent with LKFS, used in ITU-R BS.1770. LU Loudness Unit Relative loudness measurement. 1 LU corresponds to the relative measurement of 1 dB on a digital scale. LU can ...

  5. List of musical scales and modes - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_scales_and...

    List of musical scales and modes Name Image Sound Degrees Intervals Integer notation # of pitch classes Lower tetrachord Upper tetrachord Use of key signature usual or unusual 15 equal temperament: 15-tet scale on C. Play ⓘ — — — 15 — — — 16 equal temperament: 16-tet scale on C. Play ⓘ — — — 16 — — 17 equal temperament ...

  6. D-flat major - Wikipedia

    en.wikipedia.org/wiki/D-flat_major

    The flattened pitches of D-flat major correspond to the black keys of the piano, and there is much significant piano music written in this key. Pyotr Ilyich Tchaikovsky's Piano Concerto No. 1 is written in B-flat minor, but the famous opening theme is in D-flat major. Tchaikovsky composed the second movement of Piano Concerto No. 1 also in D-flat.

  7. D minor - Wikipedia

    en.wikipedia.org/wiki/D_minor

    D minor is particularly recurrent in the music of Sergei Rachmaninoff, with pieces written in the key occupying close to one eighth of his total compositional output, including the Third Piano Concerto; the Piano Sonata No. 1; the Symphony No. 1; the Trio élégiaque No. 2; the Études-Tableaux, Op. 33, No. 4; and Op. 39, No. 8; the Corelli ...

  8. Enharmonic equivalence - Wikipedia

    en.wikipedia.org/wiki/Enharmonic_equivalence

    A musical passage notated as flats. The same passage notated as sharps, requiring fewer canceling natural signs. Sets of notes that involve pitch relationships — scales, key signatures, or intervals, [1] for example — can also be referred to as enharmonic (e.g., the keys of C ♯ major and D ♭ major contain identical pitches and are therefore enharmonic).

  9. B-flat major - Wikipedia

    en.wikipedia.org/wiki/B-flat_major

    B-flat major is a major scale based on B ... Piano Concerto No. 6; Piano Concerto No. 15; Piano Concerto No. 18; Piano Concerto No. 27; String Quintet No. 1;