@Feuerfuchs, I really love the mod you've done! Though I also thought how cool it would be, if all the songs only played at the time period they were composed in... Now that I have launched the 'Albert (AIM)' Mod (which extends the game to 1929), I was wondering if I could create an addon, based on your mod, to give the player a bit more flavour and sound feedback on which time period they are playing at the moment?
I would definitely give you full credit, for providing the songs, or if you'd like, you could provide that addon yourself. Whatever you would prefer.