src/primitives/Guitar.ts
export type GuitarStringPrimitives = {
name: string;
index: number;
};
export type FretPrimitives = {
string: GuitarStringPrimitives;
fret: number;
};
export type PositionPrimitives = {
name: string;
lowestFret: FretPrimitives;
highestFret: FretPrimitives;
};