Strasheela

Highly expressive constraint-based music composition system
Download

Strasheela Ranking & Summary

Advertisement

  • Rating:
  • License:
  • GPL
  • Price:
  • FREE
  • Publisher Name:
  • Torsten Anders
  • Publisher web site:
  • Operating Systems:
  • Mac OS X
  • File Size:
  • 3.9 MB

Strasheela Tags


Strasheela Description

Highly expressive constraint-based music composition system Strasheela is a highly expressive constraint-based music composition system. The Strasheela user declaratively states a music theory and the computer generates music which complies with this theory. A theory is formulated as a constraint satisfaction problem (CSP) by a set of rules (constraints) applied to a music representation in which some aspects are expressed by variables (unknowns). Music constraint programming is style-independent and is well-suited for highly complex theories (e.g. a fully-fledged theory of harmony). User-interface is the programming language Oz. The results may be output into various formats including MIDI, Csound, and Lilypond.Strasheela runs on all operation systems supported by Oz, that is Unix-like systems (e.g. Mac OS X, Linux) and MS Windows. Requirements: · Oz programming language What's New in This Release: Main additions and changes: · Fixed serious bug: core of Strasheela dependend on IOzSeF, now IOzSeF support moved into an extra contribution functor IOzSeF (thanks to Ajay Dhar for pointing out this problem) · Added Windows batch files for installation etc. (thanks to Ajay Dhar for a first version!!) · Added functor Segments: a collection of re-usable musical segments (sub-CSPs) such as a contrapuntual line, motifs, or a homophonic chord progression · Added several harmony-related constraints to HS.rules: RestrictPitchDomain, OnlyOrnamentalDissonance_Durations, NoParallel, NoParallels, MakeIntervalConstraint, PerfectConsonances, IsPerfectConsonanceR, Limit3Consonances, IsLimit3ConsonanceR, Limit3Intervals_2, IsLimit3IntervalR_2, Limit5Consonances, IsLimit5ConsonanceR, IsLimit_3_5_ConsonanceR, IsLimit7ConsonanceR, IsLimit_3_5_7_ConsonanceR, and GetRootPCIntervals Documentation: · Schoenberg-TheoryOfHarmony.oz: the examples produced parallel fifths/octaves (between voices more than an octave apart), now fixed in source (not yet fixed in solutions in HTML file...) · HarmonicProgressions-22ET.oz: Added adaptive JI output, added four-voice setting of examples (using new Segs.homophonicChordProgression) Minor additions: · Score: added DefMixinSubscript · GUtils: added RoundDigits · Pattern: added constraints Intervals, AbsIntervals, RestrictMaxInterval, Hook, Stairs · HS: added general pitch converters HS.acc, HS.pc, HS.pcName, and HS.pitch · HS.score: added HarmonicRythmFollowsMarkers · HS.rules.schoenberg: added AscendingProgression2R Further bug fixes and changes: · Score: method getSimultaneousItems: now made sure arg test is only applied to items · Out: Lilypond output, arg hasBreak: no reak inserted after last container matching hasBreak


Strasheela Related Software

About SoftwareSea