concertmaster

This simple module aims to make conversions in music informatics easier. It is helpful for MusicXML processing.

Installation

npm install concertmaster

Usage

const cm = require("concertmaster");
console.log(cm.noteToMidi("G#5")); //=> 68

Currently supports the following functions:

noteStringToMidiNum(noteString)

takes a note string and converts it to a midi #

Ex:

cm.noteStringToMidiNum("G#5"); //=> 68

midiNumToNoteString(midiNum)

takes a midi # and converts to a note string

Ex:

cm.midiNumToNoteString(68); //=> G#5

keyToNumSharpsFlats(key)

takes a key and converts it to a number between -6 and 6. Negative numbers represent flats and positive numbers represent sharps as is in accordance with MusicXML

Ex:

cm.keyToNumSharpsFlats("Gb"); //=> -6

numSharpsFlatsToKey(numSharpsFlats)

takes a number between -6 and 6 and converts it to a key. Negative numbers represent flats and positive numbers represent sharps as is in accordance with MusicXML

Ex:

cm.numSharpsFlatsToKey(-6); //=> Gb

More functionality to come soon...

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