Extending LilyPond: 1.1.1 Scheme sandbox

### 1.1.1 Scheme sandbox

The LilyPond installation includes the Guile implementation of Scheme. On most systems you can experiment in a Scheme sandbox by opening a terminal window and typing ‘guile’. On some systems, notably Windows, you may need to set the environment variable `GUILE_LOAD_PATH` to the directory `../usr/shr/guile/1.8` in the LilyPond installation. For the full path to this directory see Other sources of information. Alternatively, Windows users may simply choose ‘Run’ from the Start menu and enter ‘guile’.

Once the guile sandbox is running, you will receive a guile prompt:

    guile>

You can enter Scheme expressions at this prompt to experiment with Scheme.

Jiné jazyky: deutsch, español.

#### LilyPond — Extending