The D♯ Note

D♯ is a black key, immediately next to D. It sounds at 311.13 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)
311.13 Hz
MIDI number (octave 4)
63
Also written as
E♭
In key signatures
The 4 sharp in the order of sharps.

D♯ and its enharmonic spellings

D♯ can also be written as E♭. 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♯12738.89 Hz
D♯23977.78 Hz
D♯351155.56 Hz
D♯463311.13 Hz
D♯575622.25 Hz
D♯6871244.51 Hz
D♯7992489.02 Hz

Chords on D♯

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

See every D♯ chord

Piano Companion
Piano Companion
Chords, Scales & Progressions

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Scales starting on D♯

Keys and scales that use D♯ as their tonic.

All notes

Sıkça sorulan sorular

Where is D♯ on the piano?

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

What frequency is D♯4?

D♯4 sounds at 311.13 Hz with A4 tuned to 440 Hz.

What is another name for D♯?

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