SolfetoD♯ (E♭)
D♯ or E♭ is the second black key of the group of two, one of the five notes with two names. With A4 tuned to 440 Hz, D♯4 is 311.13 Hz. A semitone below it is D, a semitone above it E. In Solfeto it is the 4th of the twelve pitches to join a learner's set.
D♯ in every octave
Press one to hear it.
- Solfeto plays this octave.
- Solfeto plays this octave.
- Solfeto plays this octave.
- Solfeto plays this octave.
Its names
| With a sharp | D♯, said "D sharp" |
|---|---|
| With a flat | E♭, said "E flat" |
| Fixed do | re diesis |
| German | Dis or Es |
| Pitch class | 3, counting C as 0 |
D♯ in Solfeto
D♯ joins 4th, after C, F♯ and A. Its nearest neighbour already in the set is C, 3 semitones away. The order keeps early pitches far apart, so that each new one is easy to tell from those already learned.
It joins when the set before it is held: right 90 percent of the time, quickly, with no pitch left behind. The method is in how to train absolute pitch.
The notes beside it
Mixing up D♯ with D or E is the most common mistake in naming it. One semitone is the smallest step between two notes, and the one training spends longest on.
Questions
What is the frequency of D sharp4?
D♯4 is 311.13 Hz, with A4 tuned to 440 Hz. D♯3 is 155.56 Hz and D♯5 is 622.25 Hz.
Is D sharp the same as E flat?
Yes, on a piano and to the ear: one key, one sound. Music in a sharp key writes D♯, music in a flat key writes E♭.
Where is D sharp on a piano?
D♯ is the second black key of the group of two.