I became aware of harmonics and the sound of different shaped waveforms ... I have created several sine wave sources and summed them together. Seen here, the waves combine into a square wave ...

According to the FOURIER THEOREM, periodic sound may be shown to consist of SINE WAVEs in the HARMONIC SERIES, where the Fourier coefficients give the AMPLITUDE and PHASE angle of each component.

Part of the reason for the confusion between chorus, phasing and flanging is the close similarity in sound between the three. Arguably the technical differences between them are subtle, but when ...