Python bindings for the Surge Synth Team Tuning Library.
To install from PyPI:
$ pip install tuning-libraryor to clone the repo and install from source:
$ git clone --recurse-submodules https://github.com/surge-synthesizer/tuning-library-python.git
$ cd tuning-library-python
$ python3 -m pip install .Read scl file and find frequency of midi note 69
import tuning_library as tl
scale = tl.read_scl_file("scale.scl")
tuning = tl.Tuning(scale)
f = tuning.frequency_for_midi_note(69)Read scl and kbm files and find frequency of midi note 69
import tuning_library as tl
scale = tl.read_scl_file("scale.scl")
mapping = tl.read_kbm_file("mapping.kbm")
tuning = tl.Tuning(scale, mapping)
f = tuning.frequency_for_midi_note(69)There are some scripts which use tuning_library in the examples directory in the repo.
The names in the C++ Tuning Library and this Python wrapper correspond as follows
| C++ | Python |
|---|---|
| readSCLFile | read_scl_file |
| parseSCLData | parse_scl_data |
| evenTemperament12NoteScale | even_temperament_12_note_scale |
| evenDivisionOfSpanByM | even_division_of_span_by_m |
| evenDivisionOfCentsByM | even_division_of_cents_by_m |
| readKBMFile | read_kbm_file |
| parseKBMData | parse_kbm_data |
| tuneA69To | tune_A69_to |
| tuneNoteTo | tune_note_to |
| startScaleOnAndTuneNoteTo | start_scale_on_and_tune_note_to |
| Scale::name | Scale.name |
| Scale::description | Scale.description |
| Scale::rawText | Scale.raw_text |
| Scale::count | Scale.count |
| Scale::tones | Scale.tones |
| KeyboardMapping::count | KeyboardMapping.count |
| KeyboardMapping::firstMidi | KeyboardMapping.first_midi |
| KeyboardMapping::lastMidi | KeyboardMapping.last_midi |
| KeyboardMapping::middleNote | KeyboardMapping.middle_note |
| KeyboardMapping::tuningConstantNote | KeyboardMapping.tuning_constant_note |
| KeyboardMapping::tuningFrequency | KeyboardMapping.tuning_frequency |
| KeyboardMapping::tuningPitch | KeyboardMapping.tuning_pitch |
| KeyboardMapping::octaveDegrees | KeyboardMapping.octave_degrees |
| KeyboardMapping::keys | KeyboardMapping.keys |
| KeyboardMapping::rawText | KeyboardMapping.raw_text |
| KeyboardMapping::name | KeyboardMapping.name |
| Tuning::N | Tuning.N |
| Tuning::withSkippedNotesInterpolated | Tuning.with_skipped_notes_interpolated |
| Tuning::frequencyForMidiNote | Tuning.frequency_for_midi_note |
| Tuning::frequencyForMidiNoteScaledByMidi0 | Tuning.frequency_for_midi_note_scaled_by_midi_0 |
| Tuning::logScaledFrequencyForMidiNote | Tuning.log_scaled_frequency_for_midi_note |
| Tuning::retuningFromEqualInCentsForMidiNote | Tuning.retuning_from_equal_in_cents_for_midi_note |
| Tuning::retuningFromEqualInSemitonesForMidiNote | Tuning.retuning_from_equal_in_semitones_for_midi_note |
| Tuning::scalePositionForMidiNote | Tuning.scale_position_for_midi_note |
| Tuning::isMidiNoteMapped | Tuning.is_midi_note_mapped |
| Tuning::scale | Tuning.scale |
| Tuning::keyboardMapping | Tuning.keyboard_mapping |
| Tone::type | Tone.type |
| Tone::cents | Tone.cents |
| Tone::ratio_d | Tone.ratio_d |
| Tone::ratio_n | Tone.ratio_n |
| Tone::stringRep | Tone.string_rep |
| Tone::floatValue | Tone.float_value |
| toneFromString | tone_from_string |
The tuning_library Python package also includes a
scala_files_to_frequencies convenience function which is not in the C++
library. It can be called as
import tuning_library as tl
frequencies = tl.scala_files_to_frequencies("scale.scl", "mapping.kbm")or, using a default keyboard mapping,
frequencies = tl.scala_files_to_frequencies("scale.scl")and returns a list of 128 frequencies in Hz, one for each each midi note.