« The Stylus Fantasticus is especially suited to instruments. It is the most free and unrestrained method of composing, it is bound to nothing, neither to any words nor to a melodic subject, it was instituted to display genius and to teach the hidden design of harmony and the ingenious composition of harmonic phrases and fugues.» [In: Athanasius Kircher (1602-1680), Musurgia universalis sive ars magna consoni et dissoni in libros digesta, Rome, 1650, t. I, p. 585]