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  2. F major - Wikipedia

    en.wikipedia.org/wiki/F_major

    F major is the home key of the English horn, the basset horn, the horn in F, the trumpet in F and the bass Wagner tuba. Thus, music in F major for these transposing instruments is written in C major. These instruments sound a perfect fifth lower than written, with the exception of the trumpet in F which sounds a fourth higher.

  3. Key signature - Wikipedia

    en.wikipedia.org/wiki/Key_signature

    In all major scales with flat key signatures, the tonic in a major key is a perfect fourth below the last flat. When there is more than one flat, the tonic is the note of the second-to-last flat in the signature. [11] In the major key with four flats (B ♭ E ♭ A ♭ D ♭), for example, the second to last flat is A ♭, indicating a key of A ...

  4. Just intonation - Wikipedia

    en.wikipedia.org/wiki/Just_intonation

    Some fixed just intonation scales and systems, such as the diatonic scale above, produce wolf intervals when the approximately equivalent flat note is substituted for a sharp note not available in the scale, or vice versa. The above scale allows a minor tone to occur next to a semitone which produces the awkward ratio 32:27 for D→F, and still ...

  5. Pythagorean tuning - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_tuning

    The Pythagorean scale is any scale which can be constructed from only pure perfect fifths (3:2) and octaves (2:1). [5] In Greek music it was used to tune tetrachords , which were composed into scales spanning an octave. [ 6 ]

  6. 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

  7. Musical tuning - Wikipedia

    en.wikipedia.org/wiki/Musical_tuning

    In just intonation, the frequencies of the scale notes are related to one another by simple numeric ratios, a common example of this being ⁠ 1 / 1 ⁠, ⁠ 9 / 8 ⁠, ⁠ 5 / 4 ⁠, ⁠ 4 / 3 ⁠, ⁠ 3 / 2 ⁠, ⁠ 5 / 3 ⁠, ⁠ 15 / 8 ⁠, ⁠ 2 / 1 ⁠ to define the ratios for the seven notes in a C major scale, plus the return to the ...

  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. E-flat major - Wikipedia

    en.wikipedia.org/wiki/E-flat_major

    E-flat major was the second-flattest key Mozart used in his music. For him, E-flat major was associated with Freemasonry; "E-flat evoked stateliness and an almost religious character." [4] Edward Elgar wrote his Variation IX "Nimrod" from the Enigma Variations in E-flat major. Its strong, yet vulnerable character has led the piece to become a ...