変イ is a black key, immediately next to A. It sounds at 415.3 Hz in octave 4.
変イ can also be written as 嬰ト. 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.
Frequencies for 変イ in scientific pitch notation, with A4 tuned to 440 Hz.
| Note | MIDI | Frequency |
|---|---|---|
| 変イ1 | 32 | 51.91 Hz |
| 変イ2 | 44 | 103.83 Hz |
| 変イ3 | 56 | 207.65 Hz |
| 変イ4 | 68 | 415.3 Hz |
| 変イ5 | 80 | 830.61 Hz |
| 変イ6 | 92 | 1661.22 Hz |
| 変イ7 | 104 | 3322.44 Hz |
The most common chords built with 変イ as the root.
Keys and scales that use 変イ as their tonic.
変イ is a black key, immediately next to A.
変イ4 sounds at 415.3 Hz with A4 tuned to 440 Hz.
変イ can also be written as 嬰ト. They are the same pitch spelled differently.