The Wikipedia article about Froberger seems competent and well-written (unlike much of Wikipedia!), but it contains a phrase which mystifies me.
In 1649 Froberger travelled back to Austria. On his way back he stopped in Florence and Mantua to show the arca musurgica, a powerful compositional device Kircher taught him, to some of the Italian princes.
Does anyone know what this
arca musurgica, actually was? Baz?
Indeed Neil - a kind of amateur composer's "toolbox". Have a look here...
http://www.flickr.com/photos/10610792@N04/920203454/in/set-72157601049643630