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 | 97.778 Hz | -3.91 | Medieval/early music; string ensemble open fifths |
| Just Intonation (Major) | 98.110 Hz | +1.96 | A cappella vocal, barbershop, Renaissance |
| Just Intonation (Minor) | 98.110 Hz | +1.96 | Minor-key vocal music, string ensembles |
| Quarter-Comma Meantone | 98.387 Hz | +6.84 | Renaissance keyboard, early Baroque organ |
| Third-Comma Meantone | 98.554 Hz | +9.78 | Renaissance vocal music in minor keys |
| Sixth-Comma Meantone | 98.276 Hz | +4.89 | Baroque orchestral ensemble compromise |
| 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 |
| Kirnberger III | 98.387 Hz | +6.84 | Classical-era keyboard, keys near C major |
| Vallotti | 98.220 Hz | +3.90 | Baroque/Classical orchestral tuning |
| Young (1799) | 98.332 Hz | +5.87 | Classical-era keyboard |
| Bach/Lehman | 98.220 Hz | +3.90 | Bach keyboard works, Well-Tempered Clavier |
| Neidhardt | 98.110 Hz | +1.96 | 18th century keyboard, near-equal alternative |
| Kellner (Bach) | 98.354 Hz | +6.26 | Bach keyboard reconstruction |
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.
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.