Wszystkie Gisty

1	////
2	/// Return a frequency based on piano key
3	/// @param {Number} key [49]
4	/// @return {Number} frequency
5	////
6	const getFrequencyFromKey = (key = 49) => {
7	return 2 ** ((key - 49) / 12) * 440;
8	};
9
10	////