This package contains the bare essence of strudel.
npm i @strudel/core --save
import { sequence } from '@strudel/core';
const pattern = sequence('a', ['b', 'c']);
const events = pattern.queryArc(0, 1);
const spans = events.map(
(event) => `${event.value}: ${event.whole.begin.toFraction()} - ${event.whole.end.toFraction()} `,
);
yields:
a: 0 - 1/2
b: 1/2 - 3/4
c: 3/4 - 1
a: 1 - 3/2
b: 3/2 - 7/4
c: 7/4 - 2