G7
Reviewed for accuracy · Maintained by Justin Evans
G7 highlighted — use the view toggle to see all 88 keys.
Piano key
83 of 88
Octave
7
Frequency
3135.96 Hz
MIDI number
103
Key color
White key
Pitch class
G · F## · Abb
What is G7?
G7 is the G in octave 7 — the 83rd key of the 88 on a full-size piano, counted from the bottom. In standard tuning it sounds at 3135.96 Hz. It sits 43 half-steps above middle C (C4).
To find it, locate any group of two black keys: the white key just to their left is a C. Count up from middle C (C4) 3 octaves to reach octave 7, then step to G.
Every octave doubles the frequency: the G one octave up sounds at 6271.92 Hz and the one below at 1567.98 Hz. The same piano key can be written as G, F##, Abb depending on the musical context — same sound, different spelling.
Nearby notes
Every G on the keyboard: