MICROTONAL COMPOSITION AND NOTATION

Microtonal Composition Software for Composers

Opusmodus provides an integrated environment for generating, transforming, playing and notating microtonal music. Work with quarter tones, eighth tones, cent deviations, tuning ratios and other pitch divisions as part of an algorithmic composition process.

Microtonal material remains connected to OMN, musical functions, playback and staff notation. Composers can move between symbolic pitches, numerical values, frequencies and tuning information without separating tuning from the wider musical structure.

Opusmodus displaying microtonal OMN code beside staff notation containing quarter-tone accidentals.
MICROTONAL CAPABILITIES

Work with Pitch Beyond Twelve-Tone Equal Temperament

Opusmodus treats microtonal pitches as structured musical information. They can be written symbolically, generated algorithmically, converted between representations, transformed and displayed in staff notation.

Quarter and Eighth Tones

Represent microtonal pitches with OMN symbols and display them using corresponding accidentals in conventional staff notation.

Microtonal Quantisation

Quantise numerical pitches, pitch symbols or OMN material to semitone, quarter-tone or eighth-tone pitch grids.

Tuning Conversion

Move between pitch symbols, intervals, MIDI values, frequencies, cents, ratios and tuning values for compositional and analytical use.

Algorithmic Transformation

Generate, map, filter, transpose and reorganise microtonal material while preserving its tuning information and musical relationships.

MICROTONAL WORKFLOW

From Microtonal Pitch Material to Notation

Microtonal pitches in Opusmodus remain part of the same symbolic workflow used for conventional musical material. Composers can write them directly in OMN, generate them with functions or derive them by converting frequencies, cents, ratios and numerical pitch values.

Because the tuning information remains attached to the musical material, pitch structures can be transformed without losing their microtonal identity. Rhythms, dynamics and articulations can be developed independently and then recombined with the resulting pitches.

Microtonal OMN pitch material displayed beside its corresponding staff notation in Opusmodus.

Create

Write quarter tones and eighth tones directly, or generate pitches from numerical and tuning data.

Transform

Transpose, map, filter, reorder and quantise microtonal pitch structures.

Hear

Audition the material using the appropriate microtonal playback configuration.

Notate

Display the result with corresponding microtonal accidentals in staff notation.