Type Alias Clef

Clef:
    | "treble"
    | "tenor"
    | "bass"
    | "alto"
    | "treble+8"
    | "tenor+8"
    | "bass+8"
    | "alto+8"
    | "treble-8"
    | "tenor-8"
    | "bass-8"
    | "alto-8"
    | "none"
    | "perc"