dn-m/notationmodel

Modules

SpelledPitch

The SpelledPitch module exposes structures for describing abstract pitches (e.g., what you get if you press a key on a MIDI keyboard) with letter names and accidentals. This is done in a progressively-disclosed and type-safe manner: it is easy to describe common pitch scenarios, linearly more difficult to describe more-rare pitch scenarios, and it is impossible to describe logically-invalid pitch scenarios.

The Pitch.Spelling structure provides a model of the Helmholtz-Ellis notation system. This notation system scales elegantly from the Western common practice twelve-note equal division of the octave tuning system to that of high-limit just intonation. This system is represented in the SMuFL specification, making a mapping of these structures into a rendering context as seamless as possible.

SpelledRhythm

The SpelledRhythm module defines models of beams, ties, and dots.

PlotModel

Defines a model for positioning values onto two-dimensional plots.

StaffModel

Extends the PlotModel, incorporating the concept of clefs, noteheads, accidentals, etc.

Development

Work on this package requires Swift 4.2.

Build instructions

Clone the repo.

git clone https://github.com/dn-m/NotationModel

Dive inside.

cd NotationModel

Ask Swift Package Manager to update dependencies (all are dn-m).

swift package update

Compiles code and runs tests in terminal.

swift test

Ask Swift Package Manager to generate a nice Xcode project.

swift package generate-xcodeproj

Open it up.

open NotationModel.xcodeproj/

The NotationModel package contains several modules:

• SpelledPitch
• SpelledRhythm
• PlotModel
• StaffModel

Package Metadata

Repository: dn-m/notationmodel

Default branch: master

README: README.md