Sound Settings has controls for sound effects and music.

Sound Settings opens from Game Options.

Use arrow buttons to adjust settings or slider bars to decrease/increase volume:

Sound volume: sets volume of sound effects in game.

Music volume: sets volume of music. If no music is available then controls will not function.

Currently playing: changes music; arrow buttons cycle through available music.

Please note: music is not supplied with Simutrans.
Help to add music available online at http://wiki.simutrans.com