イ is a white key on the piano. It sounds at 440 Hz in octave 4.
Frequencies for イ in scientific pitch notation, with A4 tuned to 440 Hz.
| Note | MIDI | Frequency |
|---|---|---|
| イ1 | 33 | 55 Hz |
| イ2 | 45 | 110 Hz |
| イ3 | 57 | 220 Hz |
| イ4 | 69 | 440 Hz |
| イ5 | 81 | 880 Hz |
| イ6 | 93 | 1760 Hz |
| イ7 | 105 | 3520 Hz |
The most common chords built with イ as the root.
Keys and scales that use イ as their tonic.
イ is a white key on the piano.
イ4 sounds at 440 Hz with A4 tuned to 440 Hz.