This is a 5d tour of the music data described in http://ggobi.org/book/chap-data.pdf. Rock tracks are colour orange, classical blue and new age are green.
By watching the tour you should be able to see that rock and classical tracks occupy disjoint regions of the space, with new age somewhere in between. However, there does not seem to be two distinct clusters, but a continuum between two extremes. Also note the several large outliers.