D (musical note)

D is a musical note a whole tone above C, and is known as Re within the fixed-Do solfege system. Its enharmonic equivalents are C (C-double sharp) and E (E-double flat). It is the third semitone of the solfège.

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of middle D (D4) is approximately 293.665Hz. See pitch for a discussion of historical variations in frequency.

Common scales beginning on D

 * D major: D E F♯ G A B C♯ D
 * D harmonic major: D E F♯ G A B♭ C♯ D
 * D melodic major ascending: D E F♯ G A B C♯ D
 * D melodic major descending: D C B♭ A G F♯ E D
 * D natural minor: D E F G A B♭ C D
 * D harmonic minor: D E F G A B♭ C♯ D
 * D melodic minor ascending: D E F G A B C♯ D
 * D melodic minor descending: D C B♭ A G F E D

Diatonic scales

 * D Ionian: D E F♯ G A B C♯ D
 * D Dorian: D E F G A B C D
 * D Phrygian: D E♭ F G A B♭ C D
 * D Lydian: D E F♯ G♯ A B C♯ D
 * D Mixolydian: D E F♯ G A B C D
 * D Aeolian: D E F G A B♭ C D
 * D Locrian: D E♭ F G A♭ B♭ C D

Jazz melodic minor

 * D ascending melodic minor: D E F G A B C♯ D
 * D Dorian ♭2: D E♭ F G A B C D
 * D Lydian augmented: D E F♯ G♯ A♯ B C♯ D
 * D Lydian dominant: D E F♯ G♯ A B C D
 * D Mixolydian ♭6: D E F♯ G A B♭ C D
 * D Locrian ♮2: D E F G A♭ B♭ C D
 * D altered: D E♭ F G♭ A♭ B♭ C D