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| //Intervals | |
| let C0 = MusicPitch(name: .c, accidental: .natural, octave: 0) | |
| let D0 = MusicPitch(name: .d, accidental: .natural, octave: 0) | |
| let majorSecond = try MusicInterval(rootPitch: C0, destinationPitch: D0) | |
| XCTAssertEqual(majorSecond.halfStepDistance, 2) | |
| XCTAssertEqual(majorSecond.quality, MusicIntervalQuality.major) | |
| XCTAssertEqual(majorSecond.quantity, MusicIntervalQuantity.second) | |
| //Scales | |
| let root = MusicPitch(name: .d, accidental: .natural, octave: 0) | |
| let scale = MusicScale(root: root, mode: .harmonicMinor) | |
| let dMinor = [root, | |
| MusicPitch(name: .e, accidental: .natural, octave: 0), | |
| MusicPitch(name: .f, accidental: .natural, octave: 0), | |
| MusicPitch(name: .g, accidental: .natural, octave: 0), | |
| MusicPitch(name: .a, accidental: .natural, octave: 0), | |
| MusicPitch(name: .b, accidental: .flat, octave: 0), | |
| MusicPitch(name: .c, accidental: .sharp, octave: 1)] |
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