Lissajous Figures, Musical Intervals, and the Just Diatonic Scale
Michael J. Ruiz · The Physics Teacher · 2018
The frequency ratios for the just diatonic scale are obtained by identifying musical intervals corresponding to Lissajous figures. The demonstration integrates the engineering physics of Lissajous patterns with the recognition of musical intervals through simple ear training. A free HTML5 app has been developed for this class activity and the program can be run online or downloaded to the desktop. A video is provided illustrating the use of the software.