The 라♭ Note
라♭ is a black key, immediately next to A. It sounds at 415.3 Hz in octave 4.
라♭ on the piano
Key facts
- On the keyboard
- a black key, immediately next to A.
- Frequency (octave 4)
- 415.3 Hz
- MIDI number (octave 4)
- 68
- Also written as
- 솔♯
- In key signatures
- The 3 flat in the order of flats.
라♭ and its enharmonic spellings
라♭ can also be written as 솔♯. 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.
라♭ frequency in every octave
Frequencies for 라♭ in scientific pitch notation, with A4 tuned to 440 Hz.
| Note | MIDI | Frequency |
|---|---|---|
| 라♭1 | 32 | 51.91 Hz |
| 라♭2 | 44 | 103.83 Hz |
| 라♭3 | 56 | 207.65 Hz |
| 라♭4 | 68 | 415.3 Hz |
| 라♭5 | 80 | 830.61 Hz |
| 라♭6 | 92 | 1661.22 Hz |
| 라♭7 | 104 | 3322.44 Hz |
Chords on 라♭
The most common chords built with 라♭ as the root.
Scales starting on 라♭
Keys and scales that use 라♭ as their tonic.
All notes
자주 묻는 질문
Where is 라♭ on the piano?
라♭ is a black key, immediately next to A.
What frequency is 라♭4?
라♭4 sounds at 415.3 Hz with A4 tuned to 440 Hz.
What is another name for 라♭?
라♭ can also be written as 솔♯. They are the same pitch spelled differently.
