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G♯2 / A♭2 · 103.83 Hz

G♯2 is piano key 24 of 88 and MIDI note 44 - the bass register, where bass lines and a male bass voice live. Play the pure tone below, tune to it, or explore the note in every octave.

103.83Hz

Volume50%

Waveform

G♯2 at a glance

Frequency

103.83 Hz

Wavelength (in air)

3.30 m

MIDI note

44

Piano key

24 / 88

Octave

2

Enharmonic

A♭2

All values assume twelve-tone equal temperament at the international standard pitch of A4 = 440 Hz. In that system every semitone has the same size - a frequency ratio of 2^(1/12) - so G♯2 is exactly 440 × 2^(-25/12) Hz. Under alternative references the note shifts with the reference: at A4 = 432 Hz, G♯2 becomes 101.94 Hz.

G♯ in every octave

Note	Frequency	MIDI	Piano key
G♯1	51.91 Hz	32	12
G♯2 ←	103.83 Hz	44	24
G♯3	207.65 Hz	56	36
G♯4	415.30 Hz	68	48
G♯5	830.61 Hz	80	60
G♯6	1661.2 Hz	92	72
G♯7	3322.4 Hz	104	84

Each octave doubles the frequency - the simplest relationship in music, and the reason notes an octave apart sound like “the same note, higher”.

Neighboring notes

F♯2 · 92.50 Hz G2 · 98.00 HzG♯2 · 103.83 HzA2 · 110.00 Hz A♯2 · 116.54 Hz

One semitone down is G2 at 98.00 Hz; one semitone up is A2 at 110.00 Hz. Need a frequency between notes, or a different waveform? The tone generator plays anything from 20 Hz to 20 kHz; the note ↔ frequency converter does the math both directions, and the chromatic tuner listens to your instrument and shows the offset in cents.

G♯2 FAQ

What frequency is G♯2?

G♯2 / A♭2 is 103.83 Hz in twelve-tone equal temperament with the standard reference of A4 = 440 Hz. Every semitone step multiplies the frequency by the twelfth root of two (about 1.0595), and G♯2 sits 25 semitones below A4.

What MIDI number and piano key is G♯2?

G♯2 is MIDI note 44 and key 24 of 88 on a standard piano. Octave numbering follows scientific pitch notation, where middle C is C4 (MIDI 60).

How do I tune to G♯2?

Play the tone above and match your instrument by ear until the beating between the two pitches slows and disappears, or use the chromatic tuner with your microphone for a cents readout. Small mistunings show up as slow beats: one beat per second at this pitch means you are about 16.6 cents off.

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