From: "Felix D." <>
Date: Tuesday, April 10, 2018 at 3:42 PM
To: <>
Subject: The search for an API

Hello Lilypond-Fans,

I have a question: Does Lilypond have an API that can be simply called from 
other programs to render some markup (stored as a string) into a SVG file?

We want to use Lilypond in an Unity app/game, wich will be used by many 
musicians and thus requires some decent staff rendering. We basically program 
in C#, but there is an easy bridge to interface with C/C++ libraries. So 
calling an API should not be a huge problem, but does it even exist and is 
documented somewhere?

I asked in the IRC a few hors ago, and received a brief "No, it doesn't exist". 
Bit is that really the abrupt end of the story, or is there some other 
possibility to call Lilypond from an external program?

Lilypond does not have an API.

It is possible to call LilyPond from an external program using a shell command, 
because LilyPond has a command-line interface.

Look at the Lilypond Usage manual for information on command-line options.

It will produce an svg file that you can then display.



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