G1 — 48.999 Hz
G1 (G1) is 48.999 Hz in standard equal temperament at A=440 Hz. It is MIDI note number 31.
G1 Frequency in All Tuning Systems
| Temperament | Frequency (Hz) | Cents from Equal | Common Usage |
|---|---|---|---|
| Equal Temperament | 48.999 Hz | 0.00 | Modern standard; piano, fretted instruments |
| Pythagorean Tuning | 48.889 Hz | -3.89 | Medieval/early music; string ensemble open fifths |
| Just / Pure | 49.055 Hz | +1.98 | A cappella vocal, barbershop, Renaissance |
| Meantone 1/3 Comma | 49.277 Hz | +9.79 | Renaissance vocal music in minor keys |
| Meantone 1/4 Comma | 49.194 Hz | +6.88 | Renaissance keyboard, early Baroque organ |
| 1/6 SC - Attenuated | 49.138 Hz | +4.90 | Baroque orchestral ensemble compromise |
| Kellner's Bach | 49.177 Hz | +6.28 | Bach keyboard reconstruction |
| Kirnberger III | 49.194 Hz | +6.88 | Classical-era keyboard, keys near C major |
| Vallotti | 49.110 Hz | +3.92 | Baroque/Classical orchestral tuning |
| Werckmeister III | 49.221 Hz | +7.83 | Baroque keyboard; Bach contemporaries |
| Werckmeister IV | 49.055 Hz | +1.98 | Baroque keyboard, strong key contrast |
| Werckmeister V | 49.221 Hz | +7.83 | Specialized Baroque keyboard |
Positive cents = sharper than equal temperament. Negative cents = flatter. 100 cents = 1 semitone.
G1 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) | 48.999 Hz | US, UK, and most modern ensembles worldwide |
| A = 442 Hz | 49.222 Hz | Many European orchestras; France, Germany |
| A = 443 Hz | 49.334 Hz | Berlin Philharmonic; some US orchestras |
| A = 432 Hz | 48.109 Hz | Alternative tuning; Baroque revival |
| A = 415 Hz (Baroque) | 46.215 Hz | Historically-informed Baroque performance |
f = f_at_A440 × (concert_pitch / 440)
Instruments That Play G1
G1 (48.999 Hz) falls within the comfortable playing range of 11 instruments.
G1 Across All Tuning Systems
Explore how G1 is tuned in each historical temperament system. Each tuning system gives G1 a slightly different frequency, affecting the harmonic character of chords and melodies.
G1 in Historical Temperament Systems
Explore how G1 (48.999 Hz in equal temperament) is tuned in each of the 15 historical non-equal temperament systems. Each system places G1 at a slightly different frequency based on its mathematical basis.
Tune G1 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.
