I'm studying Common Lisp and the more I'm learning, the more curious I am about how OMN is implemented. E.g. the pitch system (melody as well as chords).

 

Any hints, references, articles what so ever would be more than welcome :-)

 

Big hug

most of the time i'm working with pure LISP (pitches in midi-note-numbers -> then (midi-to-pitch ...) to create omn-pitches)

after LISP-coding (generating lists for pitches/lengths/...) i'm converting to OMN-format by  (make-omn :pitches :length etc...)... 

 

 

 

Yes, that approach is clear to me. I'm just curious how OMN works under the hood / how OMN is implemented in Common Lisp.

 

Big hug

OMN implementation in Common Lisp is very complex indeed - it needs to work with MIDI and MusicXML.

The OMN code is thousands of lines long.

Hi opmo,

 

As a developer I can understand the complexity of Opusmodus. My question arose just out of curiosity while studying Common Lisp and trying to understand how the OMN pitch notation is implemented under the hoods. That's all :-)

 

But anyway, as AM stated, working with pure Lisp types will already enable a lot of Opusmodus hacking to keep me of the street for a while.