attemperation

Noun

 * 1)  The act of attempering or regulating.
 * 2) * 1609 (revised 1625),, De Sapientia Veterum ('Wisdom of the Ancients')
 * And if this be possible, it can certainly be effected no other way than by proper and exquisite attemperations of nature; as it were by the harmony and fine touching of the harp