Csound plugin for microtonal tunings.

Opcodes:

• scalatuning loads tunings from scl and kbm files using the Surge Synth Team Tuning Library
• mtsesp_notetofrequency queries tunings with ODDSound MTS-ESP

Load tuning from Scala scl and kbm files:

igTuning[] scalatuning "scale.scl", "keyboardmap.kbm"

Load tuning from scl file using default keyboard map:

igTuning[] scalatuning "scale.scl", ""

Here igTuning is an array of 128 frequencies in Hz, the frequency for each midi note.

Get frequency in Hz for midi note p4 from an MTS-ESP master:

iFreq mtsesp_notetofrequency p4

Get frequency for midi note p4, updated throughout note:

kFreq mtsesp_notetofrequency p4

Optionally pass midi channel to use per-channel MTS-ESP tuning tables:

ichn midichn
kFreq mtsesp_notetofrequency p4, ichn

$ git clone https://github.com/narenratan/csound_tuning.git
$ cd csound_tuning
$ git submodule update --init --recursive
$ cmake -B build
$ cmake --build build

On Linux this produces a shared object libtuning.so in the build directory. Putting this in the ~/.local/lib/csound/6.0/plugins64 directory makes it available to Csound (for Csound version >= 6.16; for more details see the Csound Plugins docs).

• Built-in Csound tuning opcodes and GEN51
• A user defined opcode for reading scala files
• An article on tuning in Csound
• The Microcsound score language and frontend