31EDO Tuner

A Musescore plugin for tuning scores to 31EDO.

Features

This plugin can be used to tune the whole score, or only a portion of it, to 31EDO.

Accidentals

This plugin is compatible with the following notation systems:

• Circle of fifths notation, using double sharps and flats. In this system, a sharp or a flat indicates an alteration of 2 EDO steps, and a double sharp or a double flat an alteration of 4 EDO steps. For example, a chromatic scale between C and D would be written as:

• Neutral circle of fifths notation, using half and sesqui sharps and flats. In this system, a half sharp or a half flat indicates an alteration of 1 EDO step, and a sesqui sharp or a sesqui flat an alteration of 3 EDO steps. For example, a chromatic scale between C and D would be written as:

• Sagittal notation, using quarter tone and half tone arrows. In this system, a quarter tone arrow indicates an alteration of 1 EDO step, and a half tone arrow indicates an alteration of 2 EDO steps. For example, a chromatic scale between C and D would be written as:

These notation systems are not mutually exclusive, the plugin can correctly tune a score which uses a mixture of them.

See here for a list of every supported accidental.

This plugin remembers which accidental is applied to any given note, and will automatically apply the correct tuning offset to the following notes within the same measure. This is also true for microtonal accidentals, for which this is usually not automatically done in Musescore. A limitation of this is that the plugin only checks for accidentals for each voice individually, so if there are multiple voices with microtonal accidentals, it might be necessary to add an extra accidental for the first modified note in each voice. This extra accidental can be safely made invisible, as that won't affect the plugin, as in the following example:

Key Signatures

This plugin supports custom key signatures. If the custom key signatures only contain standard accidentals, no extra action is required other than inserting the custom key signaturs into the score.

If the key signature contains microtonal accidentals, then it is necessary to also add a text (System Text for a global key signature or Staff Text for a local key signature) to inform the plugin about the accidentals present in the key signature. This text has to be formatted as X.X.X.X.X.X.X, where X are the accidental applied to each note, arranged according to the circle of fifths: F.C.G.D.A.E.B. These accidentals are written using ASCII characters only in the following way:

Accidental	Text
	bb
	db
	b
	d
	t
	#
	t#
	x

If a note does not have an accidental in the custom key signature, you can leave the text for that note empty.

The text describing the custom key signature can be safely made invisible, as that won't affect the plugin, as in the following example:

Usage

• If the score contains transposing instruments, ensure that the score is being displayed at concert pitch. If it's not, the notes of transposing instruments will not be tuned correctly.
• If you want to tune only a portion of the score, select it before running the plugin. If nothing is selected, the entire score will be tuned.
• Launch the plugin:
  • Musescore3: Plugins → Tuner → 31EDO
  • Musescore4: Plugins → Playback → 31EDO Tuner

If the score contains transposing instruments, you can safely turn off concert pitch after running the plugin, as the tuning of the notes will not be affected.

See here for a known issue regarding transposing instruments.

Installing

Musescore3

• Download the file 31edo_tuner_x.y.z.zip, where x.y.z is the version of the plugin. You can find the latest version compatible with Musescore3 here.
• Extract the file 31EdoTuner.qml, and move it to Musescore's plugin folder.
• Follow the steps listed here to enable the plugin.

Musescore4

• Download the file 31edo_tuner_x.y.z.zip, where x.y.z is the version of the plugin. You can find the latest version here.
• Extract the folder 31edo_tuner and move it to Musescore's plugin folder.
• Follow the steps listed here to enable the plugin.