Yes, competing overtones from different harmonics can lead to cancellation...the same can happen with non-harmonic tones. Here is an example of harmonics (the end of the first piece, "Come with me my Giselle") that contains natural harmonics, two played simultaneously and the last note is an artificial harmonic. The double harmonics do not seem to cancel each other out in this case.Guero wrote: ↑Wed Apr 10, 2019 7:08 pmI've also noticed that a lot of entry-level-guitars are "better" on harmonics than "luthier" guitars. Maybe sheer coincidence..
Often if you play several harmonics simultanously their frecuencies seem to eliminate each other so that one harmonic dies away immediatly.