Hi Tuukka, Mathematics is a language of precise logic. Evolution disturbs mathematics. What do you mean levels in existence? Music is more freewheeling. Go with the flow, dig the jive! Joe On 1/11/12 2:50 PM, "mail at tuukkavirtaperko.net" <mail at tuukkavirtaperko.net> wrote: > I like to contrast music with mathematics.