A music score library with MusicPart, Measure, Note, Pitch and Tempo representations in swift structs
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.
Create a MusicScore from a sample midf file in embedded resouce bundle
let score = MusicScore(url: ScoreSamples.sample)! // 4tracks.mid
print(score)
Sample MIDI file (4tracks.mid)
Sample Output print(score) (4tracks.mid)
Score: 4tracks.mid
meta: 4tracks.mid_0, instrument: unknown
----------------
measure: 0, [0.0, 3.75), tempo: [0.000, inf) ?4/4 bpm:120
[0.000-0.250) ?A3 1/16 beats:0.250 duration:0.125 ⬇️98 ⬆️64
[0.500-0.750) ?C4 1/16 beats:0.250 duration:0.125 ⬇️98 ⬆️64
[1.000-1.250) ?D4 1/16 beats:0.250 duration:0.125 ⬇️98 ⬆️64
[1.500-1.750) ?E4 1/16 beats:0.250 duration:0.125 ⬇️98 ⬆️64
[2.000-2.250) ?A3 1/16 beats:0.250 duration:0.125 ⬇️98 ⬆️64
[2.500-2.750) ?C4 1/16 beats:0.250 duration:0.125 ⬇️98 ⬆️64
[3.000-3.250) ?D4 1/16 beats:0.250 duration:0.125 ⬇️98 ⬆️64
[3.500-3.750) ?E4 1/16 beats:0.250 duration:0.125 ⬇️98 ⬆️64
Access Measures and Notes
func testAccessMeasureAndNotes() {
let score = MusicScore(url: ScoreSamples.sample)!
XCTAssertEqual(score.musicParts[0].notes.count, 8)
XCTAssertEqual(score.musicParts[0].notes[0].noteName, "A3")
XCTAssertEqual(score.musicParts[0].notes[1].noteName, "C4")
XCTAssertEqual(score.musicParts[0].measures.count, 1)
XCTAssertEqual(score.musicParts[0].measures[0].notes[0].noteName, "A3")
}