@typedin/music-utilities/dist/scale-builders/spanOver.js

A set of resources and modules I use to develop music applications.

export function spanOver(scale, numberOfOctaves) {
    const result = [];
    for (let i = 0; i < numberOfOctaves; i++) {
        scale.forEach((el) => {
            result.push({
                ...el,
                order: el.order + 7 * i,
                octave: el.octave + i,
            });
        });
    }
    result.push({
        ...scale[0],
        order: scale[0].order + result.length,
        octave: scale[0].octave + numberOfOctaves,
    });
    return result;
}
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