Fractal Tune Smithy (Windows)
Create beautiful snowflake like fractal music. Vary the parameters and hear the tunes transformed! Send your tunes as musical e-cards to your friends. Play in historical or exotic tunings using a music keyboard or your PC keyboard.
Justonic Pitch Palette (Windows or Mac)
Pitch Palette gives real time tuning adjustment features to
many microtonal capable synthesizers, with emphasis on harmonic
accuracy and real time modulations. It can create and download
pitch tables for your synthesizer, has scale editing tools and
many other functions.
Liine Lemur Hexapad Microtonal Key Array Template User Guide version 0_80 pdf (882 KB)
Hexapad Microtonal is an update to the Lemur Hexapad project, providing a hexagonal key array interface with user settable number of notes per octave. Key note and octave numbers are displayed across any user setting from 1 to 51 notes per octave. The octaves are color coded to help distinguish adjacent octaves. An octave alignment setting allows the array to change from a simple row times column shape to one that auto-adjusts to keep fingering the same for every successive octave. Root octave and note variables allow setting the root note relative to MIDI notes. The link above downloads the User Guide pdf stored on this web site.
Li'l Miss' Scale Oven (Mac)
Scale Analysis and Editing tool for the Macintosh. It can be used for simple editing and downloads of scales to synthesizers, real time retuning, theoretical examinations, creation, modification, calculations and more. It comes with a large scale archive. Li'l Miss' Scale Oven supports tuning table downloads to most of the synthesizers and samplers listed on the Microtonal Synthesis web site. Though I have not personally used it, this is the closest equivalent to SCALA that you will find on the Macintosh platform.
MAX Magic Microtuner (Mac)
Macintosh microtonal editor fully compatible with Max/MSP, MTS and Scala. Allows you to create and edit alternate tunings in a native format based on pure frequencies.
MicroTone for ArtWonk, MusicWonk, SoftStep and BankStep (Windows)
The MicroTone program provides an interface to SCALA format .scl files for use by any of the Algorithmic Arts programs. Pitch Bends are added to monophonic MIDI channels to make any synthesizer microtonal capable. ArtWonk, MusicWonk and Softstep are oriented towards algorithmic composition with graphical interfaces, while BankStep is a virtual realization of a (massive) analog modular sequencer.
SCALA (Windows, OS X, MS-DOS, Linux, Unix)
Scala is the de facto standard for microtonal scale editing software. It can be used for simple editing and downloads of scales to synthesizers, or for theoretical examinations, creation, modification, calculations and visualizations of new scales. A scale archive of over 3000 microtonal scales can be downloaded from the same site and used within Scala. Scala supports tuning table downloads to most of the synthesizers and samplers listed on the Microtonal Synthesis web site and is highly recommended.