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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
Frequency51.9131 Hzequal temperament, A4 = 440 Hz, a convention rather than a constant
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 up103.826 Hzdoubling the frequency
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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Nearby notes

The same note in other octaves

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Every value on this page was computed from “note g sharp 1” by Nerdulator’s reference engine. Nothing here was retrieved from a database of answers or written by a model.

This page is marked noindex: duplicate of /note-g-sharp1.