tune

• Improvement: When a porcupine layout exists its properties are printed (edo command)
• Improvement: Fractions are no longer converted to cents when exporting a custom scale

• Improvement: When meantone layout is a bad choice, porcupine layout is chosen for fingering. To enforce the usage of porcupine, for example in 22-EDO, provide the --porcupine command line argument.
• Improvement: SF3 support is disabled by default. To re-enable it, use the sf3 feature toggle.

• New: RatioExpression and RatioExpressionVariant providing details about the parsed ratio expression
• Improvement: Add porcupine representation as an alternative to meantone for better note names and keyboard layouts

• New: Print step sizes, keyboard layouts and note names for any EDO scale

• New: Play notes using your (ISO) keyboard
• New: Decode and render SF3 soundfonts

• New: Find meantone-based keyboard layouts for any EDO
• Improvement: Include tuning program in MTS sysex message

You can now play back sampled sounds by providing a soundfont file location on the command line, e.g.:

microwave -s /usr/share/sounds/sf2/FluidR3_GM.sf2

This feature is driven by FluidLite.

• New: Add new synthesizer waveforms

The CLI has been moved to the new crate tune-cli.

• Improvement: Add more convenience API functions
• Deletion: KeyMap::root_at_a4 – Use KeyMap::root_at(NoteLetter::A.in_octave(4)) instead

A virtual piano UI has been added which can be installed using the following command:

cargo install microwave

• CLI

  • New: scale command to be piped to dump, diff or mts
  • New: Integration tests
  • Improvement: Better scale dump

• API

  • New: NoteLetter and Octave abstractions
  • More: Standard trait implementations

• CLI
  • New: Display fractional approximations of ratios
  • Improvement: Highlight the root key of a scale
  • Change: Command rank2 is symmetric (the 0th iteration is implicit)
• API
  • New: Function nearest_fraction to find fractional approximations of ratios
  • New: Traits Pitched, PitchedNote and Tuning
  • New: Struct PianoKey which is unpitched while Notes are pitched
  • More: Documentation
  • Change: Function create_rank2_temperament_scale is symmetric (the 0th iteration is implicit)

Create a Midi Tuning Standard Sysex message:

• tune mts 69 equal 1:19:2

Create keyboard mapping files:

• tune kbm -r 60 69@450Hz

Specify reference pitch and root note for scale dumps:

• tune dump -r 60 69@450Hz harm 8

Create custom scales:

• tune scl cust -n "Just intonation" 9/8 5/4 4/3 3/2 5/3 15/8 2

Print pitches of a scale:

• tune dump rank2 3/2 3 4

Print the scl format to a file directly:

• tune scl -o output-file.scl equal 1:22:2

The CLI for rank2 temperaments is more sound:

• Use tune scl rank2 1:4:5 6 1 instead of tune scl rank2 1:4:5 7 -o-1

tune can now be used as a library

Test and fix expression parser

The following ratio expressions are approximately equivalent:

• 1.5
• 3/2
• 7:12:2
• 702c

Nested expressions are possible, e.g.

• {100/3}c