G2 — 97.999 Hz
G2 (G2) is 97.999 Hz in standard equal temperament at A=440 Hz. It is MIDI note number 43.
G2 Frequency in All Tuning Systems
| Temperament | Frequency (Hz) | Cents from Equal | Common Usage |
|---|---|---|---|
| Equal Temperament | 97.999 Hz | 0.00 | Modern standard; piano, fretted instruments |
| Pythagorean Tuning | 97.778 Hz | -3.91 | Medieval/early music; string ensemble open fifths |
| Just / Pure | 98.110 Hz | +1.96 | A cappella vocal, barbershop, Renaissance |
| Meantone 1/3 Comma | 98.554 Hz | +9.78 | Renaissance vocal music in minor keys |
| Meantone 1/4 Comma | 98.387 Hz | +6.84 | Renaissance keyboard, early Baroque organ |
| 1/6 SC - Attenuated | 98.276 Hz | +4.89 | Baroque orchestral ensemble compromise |
| Kellner's Bach | 98.354 Hz | +6.26 | Bach keyboard reconstruction |
| Kirnberger III | 98.387 Hz | +6.84 | Classical-era keyboard, keys near C major |
| Vallotti | 98.220 Hz | +3.90 | Baroque/Classical orchestral tuning |
| Werckmeister III | 98.443 Hz | +7.83 | Baroque keyboard; Bach contemporaries |
| Werckmeister IV | 98.110 Hz | +1.96 | Baroque keyboard, strong key contrast |
| Werckmeister V | 98.443 Hz | +7.83 | Specialized Baroque keyboard |
Positive cents = sharper than equal temperament. Negative cents = flatter. 100 cents = 1 semitone.
G2 at Different Concert Pitches
The same note varies in frequency depending on the concert pitch standard used by your ensemble.
| Concert Pitch | Frequency (Hz) | Common Usage |
|---|---|---|
| A = 440 Hz (ISO standard) | 97.999 Hz | US, UK, and most modern ensembles worldwide |
| A = 442 Hz | 98.444 Hz | Many European orchestras; France, Germany |
| A = 443 Hz | 98.667 Hz | Berlin Philharmonic; some US orchestras |
| A = 432 Hz | 96.217 Hz | Alternative tuning; Baroque revival |
| A = 415 Hz (Baroque) | 92.431 Hz | Historically-informed Baroque performance |
f = f_at_A440 × (concert_pitch / 440)
Instruments That Play G2
G2 (97.999 Hz) falls within the comfortable playing range of 25 instruments.
G2 Across All Tuning Systems
Explore how G2 is tuned in each historical temperament system. Each tuning system gives G2 a slightly different frequency, affecting the harmonic character of chords and melodies.
G2 in Historical Temperament Systems
Explore how G2 (97.999 Hz in equal temperament) is tuned in each of the 15 historical non-equal temperament systems. Each system places G2 at a slightly different frequency based on its mathematical basis.
Tune G2 with precision — Get Tunable.
Tunable supports 15+ tuning systems including equal temperament, Pythagorean, just intonation, and historical well-temperaments. See exact Hz values in real-time as you play.
