C2 (Music Package Symbol)

C2 gives the frequency of the note C in octave 2.

C3 (Music Package Symbol)

C3 gives the frequency of the note C in octave 3.

C4 (Music Package Symbol)

C4 gives the frequency of the note C in octave 4.

C5 (Music Package Symbol)

C5 gives the frequency of the note C in octave 5.

C6 (Music Package Symbol)

C6 gives the frequency of the note C in octave 6.

C7 (Music Package Symbol)

C7 gives the frequency of the note C in octave 7.

Cflat0 (Music Package Symbol)

Cflat0 gives the frequency of the note C-flat in octave 0.

Cflat1 (Music Package Symbol)

Cflat1 gives the frequency of the note C-flat in octave 1.

Cflat2 (Music Package Symbol)

Cflat2 gives the frequency of the note C-flat in octave 2.

Cflat3 (Music Package Symbol)

Cflat3 gives the frequency of the note C-flat in octave 3.