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1.1.1 Scheme sandbox
The LilyPond installation includes the Guile implementation of Scheme. A hands-on Scheme sandbox with all of LilyPond loaded is available with this command line:
Once the sandbox is running, you will receive a guile prompt:
You can enter Scheme expressions at this prompt to experiment with Scheme. If you want to be able to use the GNU readline library for nicer editing of the Scheme command line, check the file ly/scheme-sandbox.ly for more information. If you already have enabled the readline library for your interactive Guile sessions outside of LilyPond, this should work in the sandbox as well.