ACUTENESS. A musical sound is said to be more acute as the vibrations which produce it are more rapid. It is said to be more grave as the vibrations are slower. Thus of the two notes and the former of which is produced by 512 vibrations per second, and the latter by 256, the former is called the more acute, the latter the more grave. The application of these terms is not easy to account for. ‘Acute
’ means sharp in...
