Note reference
G Note on Piano, Staff & Guitar
The G note is pitch class 7. On piano, play the highlighted key; on guitar, use any highlighted fret position. In standard pitch notation, G4 is 392.00 Hz when A4 is tuned to 440 Hz.
G on piano
Find the highlighted key and then move left or right by complete groups of 12 keys to locate the same note name in other octaves.
G on sheet music
The vertical staff position follows the letter name. A sharp or flat changes the pitch without changing the line or space assigned to that letter.
G on guitar
In standard tuning, the diagram shows open-string and fretted locations from fret 0 through fret 12. Learn two or three nearby positions first, then connect the full pattern.
Why the note is spelled G
G is a natural note between F and A. It is the fifth scale degree of C major and the tonic of G major.
This spelling appears in C major, G major, F major, and many modal and minor collections. In chord and scale notation, keeping each scale degree on the expected letter makes intervals easier to read.
G frequencies by octave
The table uses twelve-tone equal temperament with A4 = 440 Hz. Other concert-pitch standards shift every value slightly.
| Scientific pitch | MIDI note | Frequency |
|---|---|---|
| G1 | 31 | 49.00 Hz |
| G2 | 43 | 98.00 Hz |
| G3 | 55 | 196.00 Hz |
| G4 | 67 | 392.00 Hz |
| G5 | 79 | 783.99 Hz |
| G6 | 91 | 1567.98 Hz |
| G7 | 103 | 3135.96 Hz |
Frequently asked questions
Where is G on the piano?
Use the highlighted key in the keyboard diagram. The same key repeats every 12 semitones, so every octave has another G.
Where is G on guitar?
The fretboard diagram marks every occurrence through fret 12 in standard tuning E–A–D–G–B–E. The pattern repeats after the 12th fret.
How is G written on sheet music?
The staff diagram shows G4 in treble clef and G3 in bass clef. Add the accidental before the notehead when the key signature does not already supply it.
What frequency is G?
Frequency depends on octave. With A4 = 440 Hz, G4 is 392.00 Hz; each higher octave doubles the frequency.