D♯6 / E♭6
Reviewed for accuracy · Maintained by Justin Evans
D♯6 highlighted — use the view toggle to see all 88 keys.
Piano key
67 of 88
Octave
6
Frequency
1244.51 Hz
MIDI number
87
Key color
Black key
Pitch class
D# · Eb · Fbb
What is D♯6?
D♯6 is the D♯ in octave 6 — the 67th key of the 88 on a full-size piano, counted from the bottom. In standard tuning it sounds at 1244.51 Hz. It sits 27 half-steps above middle C (C4).
To find it, locate any group of two black keys: the white key just to their left is a C. Count up from middle C (C4) 2 octaves to reach octave 6, then step to D♯.
Every octave doubles the frequency: the D♯ one octave up sounds at 2489.02 Hz and the one below at 622.26 Hz. The same piano key can be written as D#, Eb, Fbb depending on the musical context — same sound, different spelling.
Nearby notes
Every D♯ on the keyboard: