The D♭ Note

D♭ is a black key, immediately next to D. It sounds at 277.18 Hz in octave 4.

D♭ on the piano

Press play to hear the note.

Key facts

On the keyboard
a black key, immediately next to D.
Frequency (octave 4)
277.18 Hz
MIDI number (octave 4)
61
Also written as
C♯
In key signatures
The 4 flat in the order of flats.

D♭ and its enharmonic spellings

D♭ can also be written as C♯. These are enharmonic equivalents: the same pitch, the same key on the piano, a different name on the page. Which spelling is correct depends on the key and on how the note functions, not on the sound.

D♭ frequency in every octave

Frequencies for D♭ in scientific pitch notation, with A4 tuned to 440 Hz.

NoteMIDIFrequency
D♭12534.65 Hz
D♭23769.3 Hz
D♭349138.59 Hz
D♭461277.18 Hz
D♭573554.37 Hz
D♭6851108.73 Hz
D♭7972217.46 Hz

Chords on D♭

The most common chords built with D♭ as the root.

See every D♭ chord

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Scales starting on D♭

Keys and scales that use D♭ as their tonic.

All notes

Întrebări frecvente

Where is D♭ on the piano?

D♭ is a black key, immediately next to D.

What frequency is D♭4?

D♭4 sounds at 277.18 Hz with A4 tuned to 440 Hz.

What is another name for D♭?

D♭ can also be written as C♯. They are the same pitch spelled differently.