Simple. Just a piano you can place anywhere in the caravan.
Features: Functions! Just open it and it will work!
And you can move it too! Just open up the tuning tab.
Will accept piano sound mods as long the sound mods are not lua modifications.
@Flippi 284 for indirectly giving me an idea. See his post on the RV mod.
Experimental Piano in Caravan 1.2
For those who like musicals with the Hirochi MusicaFicta during their trips.