Function isNote

Returns arg is "C0" | "C4" | "C-4" | "C3" | "C-3" | "C2" | "C-2" | "C1" | "C-1" | "C5" | "C6" | "C7" | "C8" | "C9" | "C10" | "C11" | "Cbb0" | "Cbb4" | "Cbb-4" | "Cbb3" | "Cbb-3" | "Cbb2" | "Cbb-2" | "Cbb1" | "Cbb-1" | "Cbb5" | "Cbb6" | "Cbb7" | "Cbb8" | "Cbb9" | "Cbb10" | "Cbb11" | "Cb0" | "Cb4" | "Cb-4" | "Cb3" | "Cb-3" | "Cb2" | "Cb-2" | "Cb1" | "Cb-1" | "Cb5" | "Cb6" | "Cb7" | "Cb8" | "Cb9" | "Cb10" | "Cb11" | "C#0" | "C#4" | "C#-4" | "C#3" | "C#-3" | "C#2" | "C#-2" | "C#1" | "C#-1" | "C#5" | "C#6" | "C#7" | "C#8" | "C#9" | "C#10" | "C#11" | "Cx0" | "Cx4" | "Cx-4" | "Cx3" | "Cx-3" | "Cx2" | "Cx-2" | "Cx1" | "Cx-1" | "Cx5" | "Cx6" | "Cx7" | "Cx8" | "Cx9" | "Cx10" | "Cx11" | "D0" | "D4" | "D-4" | "D3" | "D-3" | "D2" | "D-2" | "D1" | "D-1" | "D5" | "D6" | "D7" | "D8" | "D9" | "D10" | "D11" | "Dbb0" | "Dbb4" | "Dbb-4" | "Dbb3" | "Dbb-3" | "Dbb2" | "Dbb-2" | "Dbb1" | "Dbb-1" | "Dbb5" | "Dbb6" | "Dbb7" | "Dbb8" | "Dbb9" | "Dbb10" | "Dbb11" | "Db0" | "Db4" | "Db-4" | "Db3" | "Db-3" | "Db2" | "Db-2" | "Db1" | "Db-1" | "Db5" | "Db6" | "Db7" | "Db8" | "Db9" | "Db10" | "Db11" | "D#0" | "D#4" | "D#-4" | "D#3" | "D#-3" | "D#2" | "D#-2" | "D#1" | "D#-1" | "D#5" | "D#6" | "D#7" | "D#8" | "D#9" | "D#10" | "D#11" | "Dx0" | "Dx4" | "Dx-4" | "Dx3" | "Dx-3" | "Dx2" | "Dx-2" | "Dx1" | "Dx-1" | "Dx5" | "Dx6" | "Dx7" | "Dx8" | "Dx9" | "Dx10" | "Dx11" | "E0" | "E4" | "E-4" | "E3" | "E-3" | "E2" | "E-2" | "E1" | "E-1" | "E5" | "E6" | "E7" | "E8" | "E9" | "E10" | "E11" | "Ebb0" | "Ebb4" | "Ebb-4" | "Ebb3" | "Ebb-3" | "Ebb2" | "Ebb-2" | "Ebb1" | "Ebb-1" | "Ebb5" | "Ebb6" | "Ebb7" | "Ebb8" | "Ebb9" | "Ebb10" | "Ebb11" | "Eb0" | "Eb4" | "Eb-4" | "Eb3" | "Eb-3" | "Eb2" | "Eb-2" | "Eb1" | "Eb-1" | "Eb5" | "Eb6" | "Eb7" | "Eb8" | "Eb9" | "Eb10" | "Eb11" | "E#0" | "E#4" | "E#-4" | "E#3" | "E#-3" | "E#2" | "E#-2" | "E#1" | "E#-1" | "E#5" | "E#6" | "E#7" | "E#8" | "E#9" | "E#10" | "E#11" | "Ex0" | "Ex4" | "Ex-4" | "Ex3" | "Ex-3" | "Ex2" | "Ex-2" | "Ex1" | "Ex-1" | "Ex5" | "Ex6" | "Ex7" | "Ex8" | "Ex9" | "Ex10" | "Ex11" | "F0" | "F4" | "F-4" | "F3" | "F-3" | "F2" | "F-2" | "F1" | "F-1" | "F5" | "F6" | "F7" | "F8" | "F9" | "F10" | "F11" | "Fbb0" | "Fbb4" | "Fbb-4" | "Fbb3" | "Fbb-3" | "Fbb2" | "Fbb-2" | "Fbb1" | "Fbb-1" | "Fbb5" | "Fbb6" | "Fbb7" | "Fbb8" | "Fbb9" | "Fbb10" | "Fbb11" | "Fb0" | "Fb4" | "Fb-4" | "Fb3" | "Fb-3" | "Fb2" | "Fb-2" | "Fb1" | "Fb-1" | "Fb5" | "Fb6" | "Fb7" | "Fb8" | "Fb9" | "Fb10" | "Fb11" | "F#0" | "F#4" | "F#-4" | "F#3" | "F#-3" | "F#2" | "F#-2" | "F#1" | "F#-1" | "F#5" | "F#6" | "F#7" | "F#8" | "F#9" | "F#10" | "F#11" | "Fx0" | "Fx4" | "Fx-4" | "Fx3" | "Fx-3" | "Fx2" | "Fx-2" | "Fx1" | "Fx-1" | "Fx5" | "Fx6" | "Fx7" | "Fx8" | "Fx9" | "Fx10" | "Fx11" | "G0" | "G4" | "G-4" | "G3" | "G-3" | "G2" | "G-2" | "G1" | "G-1" | "G5" | "G6" | "G7" | "G8" | "G9" | "G10" | "G11" | "Gbb0" | "Gbb4" | "Gbb-4" | "Gbb3" | "Gbb-3" | "Gbb2" | "Gbb-2" | "Gbb1" | "Gbb-1" | "Gbb5" | "Gbb6" | "Gbb7" | "Gbb8" | "Gbb9" | "Gbb10" | "Gbb11" | "Gb0" | "Gb4" | "Gb-4" | "Gb3" | "Gb-3" | "Gb2" | "Gb-2" | "Gb1" | "Gb-1" | "Gb5" | "Gb6" | "Gb7" | "Gb8" | "Gb9" | "Gb10" | "Gb11" | "G#0" | "G#4" | "G#-4" | "G#3" | "G#-3" | "G#2" | "G#-2" | "G#1" | "G#-1" | "G#5" | "G#6" | "G#7" | "G#8" | "G#9" | "G#10" | "G#11" | "Gx0" | "Gx4" | "Gx-4" | "Gx3" | "Gx-3" | "Gx2" | "Gx-2" | "Gx1" | "Gx-1" | "Gx5" | "Gx6" | "Gx7" | "Gx8" | "Gx9" | "Gx10" | "Gx11" | "A0" | "A4" | "A-4" | "A3" | "A-3" | "A2" | "A-2" | "A1" | "A-1" | "A5" | "A6" | "A7" | "A8" | "A9" | "A10" | "A11" | "Abb0" | "Abb4" | "Abb-4" | "Abb3" | "Abb-3" | "Abb2" | "Abb-2" | "Abb1" | "Abb-1" | "Abb5" | "Abb6" | "Abb7" | "Abb8" | "Abb9" | "Abb10" | "Abb11" | "Ab0" | "Ab4" | "Ab-4" | "Ab3" | "Ab-3" | "Ab2" | "Ab-2" | "Ab1" | "Ab-1" | "Ab5" | "Ab6" | "Ab7" | "Ab8" | "Ab9" | "Ab10" | "Ab11" | "A#0" | "A#4" | "A#-4" | "A#3" | "A#-3" | "A#2" | "A#-2" | "A#1" | "A#-1" | "A#5" | "A#6" | "A#7" | "A#8" | "A#9" | "A#10" | "A#11" | "Ax0" | "Ax4" | "Ax-4" | "Ax3" | "Ax-3" | "Ax2" | "Ax-2" | "Ax1" | "Ax-1" | "Ax5" | "Ax6" | "Ax7" | "Ax8" | "Ax9" | "Ax10" | "Ax11" | "B0" | "B4" | "B-4" | "B3" | "B-3" | "B2" | "B-2" | "B1" | "B-1" | "B5" | "B6" | "B7" | "B8" | "B9" | "B10" | "B11" | "Bbb0" | "Bbb4" | "Bbb-4" | "Bbb3" | "Bbb-3" | "Bbb2" | "Bbb-2" | "Bbb1" | "Bbb-1" | "Bbb5" | "Bbb6" | "Bbb7" | "Bbb8" | "Bbb9" | "Bbb10" | "Bbb11" | "Bb0" | "Bb4" | "Bb-4" | "Bb3" | "Bb-3" | "Bb2" | "Bb-2" | "Bb1" | "Bb-1" | "Bb5" | "Bb6" | "Bb7" | "Bb8" | "Bb9" | "Bb10" | "Bb11" | "B#0" | "B#4" | "B#-4" | "B#3" | "B#-3" | "B#2" | "B#-2" | "B#1" | "B#-1" | "B#5" | "B#6" | "B#7" | "B#8" | "B#9" | "B#10" | "B#11" | "Bx0" | "Bx4" | "Bx-4" | "Bx3" | "Bx-3" | "Bx2" | "Bx-2" | "Bx1" | "Bx-1" | "Bx5" | "Bx6" | "Bx7" | "Bx8" | "Bx9" | "Bx10" | "Bx11"