Dear developers,

Following up with my previous post: more generally, can users extend the OMN language, or is this planned in future?

After all, it is impossible for a software designer to add every idiosyncratic music notation option some composer may be using (or which has been used in the past), but ideally (power-) users would be able to extend the language according to their needs. You are probably knowing better than me all those special notations that you are not yet supporting, and likely understand the need easily.

Particular important would be additional expressions. Users would likely need to define some mapping to the equivalent MusicXML markup.

I understand that adding such feature could be very tricky, just asking :-) At least adding free user-expression text might not be hard. 

Best,

Torsten

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http://www.torsten-anders.de

The conversion from OMN to Music XML is quite complex and adding any new symbol require lot of work. Keep in mind that every attributes need to work with MIDI and notation.

The good news is that many attributes will be added soon.