There is also a problem with so much seventeenth-century music working within such tight, Sudoku-like compositional rules that perhaps anyone could have a go and come up with a nice result. But even so, for Emperors who could have just filled their time slurping from ostrich-egg goblets or killing herons, it is striking that their leisure should have been filled with the infinitely unfolding, almost alchemical world of instruments and annotation. Leopold I was undoubtedly
