Thanks Jean, I had inferred the Guile/Scheme part, nice to have a direct reference to the rational class.
As to making a big deal: I can't speak to the impact, was just trying to contribute to the points being raised by various folks. As we want lilypond to backtrack on a decision as little as possible, it seems it's good that decision are carefully analyzed, so we keep the thing as a whole cleaner and easier to grow. I won't hide that I enjoy discussing design matters in Computer Science :-) L -- Luca Fascione
