Type Alias HarpSong

HarpSong:
    | "hymn_joy"
    | "frere_jacques"
    | "amazing_grace"
    | "brahms"
    | "happy_birthday"
    | "greensleeves"
    | "jeopardy"
    | "minuet"
    | "joy_world"
    | "pure_imagination"
    | "vie_en_rose"
    | "fire_and_flames"
    | "pachelbel"