Two systems in one line

[Jörg Krause]

Hello to all,

I am working with very small scores of 2 beams. I want to put two of  
those scores into one line, each of them in a separate system. This  
means, that in the line, a new system has to begin, separated from the  
first one by a little horizontal space. How could I do that in lilyPond?

Thanks for all suggestions.

Joerg