Have been dreaming of such an interactive musical history for years. Here it is: some ingenious people have set up en.musicalized.com - rich music for poor times. the subtitle of the site must have been chosen with some sarcasm for the contemporary state of society. The contents is pure bliss though: an interactive map, which shows how musical genres have evolved and how they are interlinked. 20 main genres are subdivided in about 200 subgenres, most of them with several examples to listen in. My 8 year old daughter is thrilled and I immediately printed and laminated for her the two screenshots here to keep her going. From now on we will discuss the pedigree of each piece she listens on her ipod; and i hope that her growing understanding of musical history will help her to understand history at large.