Gflat2 gives the frequency of the note G-flat in octave 2.
Gflat3 gives the frequency of the note G-flat in octave 3.
Gflat4 gives the frequency of the note G-flat in octave 4.
Gflat5 gives the frequency of the note G-flat in octave 5.
Gflat6 gives the frequency of the note G-flat in octave 6.
Gflat7 gives the frequency of the note G-flat in octave 7.
Gsharp0 gives the frequency of the note G-sharp in octave 0.
Gsharp1 gives the frequency of the note G-sharp in octave 1.
Gsharp2 gives the frequency of the note G-sharp in octave 2.
Gsharp3 gives the frequency of the note G-sharp in octave 3.