MusicScore

A music score library with MusicPart, Measure, Note, Pitch and Tempo representations in swift structs.

Support read music score from MIDI file.

Requirements

Swift 5.0+
iOS 14.0+
macOS 13.0+

Install

Swift Package Manager

let package = Package(
  name: ...
  dependencies: [
    .package(url: "https://github.com/musical77/MusicScore.git")
  ],
  targets: ...
)

Usage

MusicScore supports load a score from mid file.

Get a MusicScore from a MID file URL

let score = MusicScore(url: ScoreSamples.url_spring1st)!
print(score)

Access MusicPart, Measures and Notes

let score = ScoreSamples.spring1st  // get a sample from embedded resource
        
let pianoPart = score.musicPartOf(instrument: .piano)!
let violinPart = score.musicPartOf(instrument: .violin)!
        
print("first measure of the violin part: ", violinPart.measures[0])
print("first measure of piano part: ", pianoPart.measures[0])
print("first note in violin part: ", violinPart.measures[0].notes[0])

Console Output

first measure of the violin part:  measure: 0, [0.0, 4.0)
[0.000-2.000) 🎵A5 1/2 beats:2.000 duration:1.000 ⬇️80 ⬆️0 ᭶120.0 4/4
[2.000-2.250) 🎵G5 1/16 beats:0.250 duration:0.125 ⬇️80 ⬆️0 ᭶120.0 4/4
[2.250-2.500) 🎵F5 1/16 beats:0.250 duration:0.125 ⬇️80 ⬆️0 ᭶120.0 4/4
[2.500-2.750) 🎵E5 1/16 beats:0.250 duration:0.125 ⬇️80 ⬆️0 ᭶120.0 4/4
[2.750-3.000) 🎵F5 1/16 beats:0.250 duration:0.125 ⬇️80 ⬆️0 ᭶120.0 4/4
[3.000-3.250) 🎵G5 1/16 beats:0.250 duration:0.125 ⬇️80 ⬆️0 ᭶120.0 4/4
[3.250-3.500) 🎵F5 1/16 beats:0.250 duration:0.125 ⬇️80 ⬆️0 ᭶120.0 4/4
[3.500-3.750) 🎵E5 1/16 beats:0.250 duration:0.125 ⬇️80 ⬆️0 ᭶120.0 4/4
[3.750-4.000) 🎵D5 1/16 beats:0.250 duration:0.125 ⬇️80 ⬆️0 ᭶120.0 4/4
first measure of piano part 1:  measure: 0, [0.0, 4.0)
[0.000-0.500) 🎵A3 1/8 beats:0.500 duration:0.250 ⬇️80 ⬆️0 ᭶120.0 4/4
[0.500-1.000) 🎵C4 1/8 beats:0.500 duration:0.250 ⬇️80 ⬆️0 ᭶120.0 4/4
[1.000-1.500) 🎵F4 1/8 beats:0.500 duration:0.250 ⬇️80 ⬆️0 ᭶120.0 4/4
[1.500-2.000) 🎵C4 1/8 beats:0.500 duration:0.250 ⬇️80 ⬆️0 ᭶120.0 4/4
[2.000-2.500) 🎵A3 1/8 beats:0.500 duration:0.250 ⬇️80 ⬆️0 ᭶120.0 4/4
[2.500-3.000) 🎵C4 1/8 beats:0.500 duration:0.250 ⬇️80 ⬆️0 ᭶120.0 4/4
[3.000-3.500) 🎵F4 1/8 beats:0.500 duration:0.250 ⬇️80 ⬆️0 ᭶120.0 4/4
[3.500-4.000) 🎵C4 1/8 beats:0.500 duration:0.250 ⬇️80 ⬆️0 ᭶120.0 4/4
first note in violin part:  [0.000-2.000) 🎵A5 1/2 beats:2.000 duration:1.000 ⬇️80 ⬆️0 ᭶120.0 4/4

ScoreSamples.spring1st

ScoreSamples.spring1st is a MusicScore of Beethoven Violin Sonata No.5 Op.24 Spring movement I Allegro. Here shows the first 2 measures of this masterpiece.

Reference

MIDI FILE Format

http://www.music.mcgill.ca/~ich/classes/mumt306/StandardMIDIfileformat.html