No.10 Ricercar Decimo (sopra Mi, sol, fa, mi)
main theme
ostinato part = Soprano
bar1-15 : sub-theme(a)
bar15-23 : main theme(+ retrograde form)
bar23-26 : main theme(stretta, diminution)
bar26-41 : sub-theme(b)
bar41-54 : sub-theme(c)
bar54-78 : sub-theme(d)
bar78-90 : sub-theme(e)
bar90-107 : main-theme(stretta, variational forms)