| 释义 |
ˈpendulograph
[f. pendul-um + -graph.]
A curve representing a combination of musical sounds, traced by an instrument which combines the vibrations of two or more pendulums, as in the harmonograph.
1881J. Andrew Pendulograph 18 These Pendulographs are pictures or portraits of the intervals, concords, and discords of the Musical System. They are produced by a pen placed under the control of two pendulums, which are tuned to swing..the ratios of the musical intervals. 1894New Sci. Rev. Oct. 169 A pen..writes..a portrait of the chord which two corresponding strings of a sounding harp would utter to the ear. This spiral writing is a pendulograph. |