C♯ (musical note)
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C♯ (C-sharp) is a musical note lying a chromatic semitone above C and a diatonic semitone below D; it is the second semitone of the solfège. C-sharp is thus enharmonic to D♭. It is the second semitone in the French solfège and is known there as do dièse. In some European notations, it is known as Cis. In equal temperament it is also enharmonic with Bdouble sharp (B-double sharp/Hisis).
When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of C♯4 (the C♯ above middle C) is about 277.183 Hz.[1] See pitch (music) for a discussion of historical variations in frequency.
Designation by octave
| Scientific designation | Helmholtz designation | Octave name | Frequency (Hz) | MIDI note number |
|---|---|---|---|---|
| C♯−1 | C♯͵͵͵ or ͵͵͵C♯ or CCCC♯ | Subsubcontra | 8.662 | 1 |
| C♯0 | C♯͵͵ or ͵͵C♯ or CCC♯ | Subcontra | 17.324 | 13 |
| C♯1 | C♯͵ or ͵C♯ or CC♯ | Contra | 34.648 | 25 |
| C♯2 | C♯ | Great | 69.296 | 37 |
| C♯3 | c♯ | Small | 138.591 | 49 |
| C♯4 | c♯Template:Prime | One-lined | 277.183 | 61 |
| C♯5 | c♯Template:PrimeTemplate:Prime | Two-lined | 554.365 | 73 |
| C♯6 | c♯Template:PrimeTemplate:PrimeTemplate:Prime | Three-lined | 1108.731 | 85 |
| C♯7 | c♯Template:PrimeTemplate:PrimeTemplate:PrimeTemplate:Prime | Four-lined | 2217.461 | 97 |
| C♯8 | c♯Template:PrimeTemplate:PrimeTemplate:PrimeTemplate:PrimeTemplate:Prime | Five-lined | 4434.922 | 109 |
| C♯9 | c♯Template:PrimeTemplate:PrimeTemplate:PrimeTemplate:PrimeTemplate:PrimeTemplate:Prime | Six-lined | 8869.844 | 121 |
| C♯10 | c♯Template:PrimeTemplate:PrimeTemplate:PrimeTemplate:PrimeTemplate:PrimeTemplate:PrimeTemplate:Prime | Seven-lined | 17739.688 | N/A |
Scales
Common scales beginning on C♯
- C♯ major: C♯ D♯ E♯ F♯ G♯ A♯ B♯ C♯
- C♯ natural minor: C♯ D♯ E F♯ G♯ A B C♯
- C♯ harmonic minor: C♯ D♯ E F♯ G♯ A B♯ C♯
- C♯ melodic minor ascending: C♯ D♯ E F♯ G♯ A♯ B♯ C♯
- C♯ melodic minor descending: C♯ B A G♯ F♯ E D♯ C♯
Diatonic scales
- C♯ Ionian: C♯ D♯ E♯ F♯ G♯ A♯ B♯ C♯
- C♯ Dorian: C♯ D♯ E F♯ G♯ A♯ B C♯
- C♯ Phrygian: C♯ D E F♯ G♯ A B C♯
- C♯ Lydian: C♯ D♯ E♯ Fdouble sharp G♯ A♯ B♯ C♯
- C♯ Mixolydian: C♯ D♯ E♯ F♯ G♯ A♯ B C♯
- C♯ Aeolian: C♯ D♯ E F♯ G♯ A B C♯
- C♯ Locrian: C♯ D E F♯ G A B C♯
Jazz melodic minor
- C♯ ascending melodic minor: C♯ D♯ E F♯ G♯ A♯ B♯ C♯
- C♯ Dorian ♭2: C♯ D E F♯ G♯ A♯ B C♯
- C♯ Lydian augmented: C♯ D♯ E♯ Fdouble sharp Gdouble sharp A♯ B♯ C♯
- C♯ Lydian dominant: C♯ D♯ E♯ Fdouble sharp G♯ A♯ B C♯
- C♯ Mixolydian ♭6: C♯ D♯ E♯ F♯ G♯ A B C♯
- C♯ Locrian ♮2: C♯ D♯ E F♯ G A B C♯
- C♯ Altered: C♯ D E F G A B C♯
References
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See also
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