Recognised as Musical note
G#1
- G#1
- 51.91 Hz
- MIDI 32
G#1 (enharmonically Ab1) is MIDI note 32, sounding at 51.913 Hz in equal temperament with A4 = 440 Hz. Its wavelength in air is 6.6072 m, and it sits in octave 1.
The canonical address for this page is /note-g-sharp1.
Pitch
Scientific pitch notationG#1
Enharmonic equivalentAb1the same pitch in equal temperament, spelled differently
MIDI note number32
Pitch classG# (8)
Octave1
As a sound wave
Wavelength in air6.6072 mat 343 m/s, dry air at 20 °C
Period19.263 ms
Frequency one octave down25.957 Hz
AudibleYeshuman hearing runs roughly 20 Hz to 20 kHz and narrows with age
Intervals from here
Octave belowG#0 · 25.96 Hz
Perfect fifth belowC#1 · 34.65 Hz
Semitone belowG1 · 49 Hz
Semitone aboveA1 · 55 Hz
Major third aboveC2 · 65.41 Hz
Perfect fifth aboveD#2 · 77.78 Hz
Octave aboveG#2 · 103.83 Hz
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