The ability of a percussive instrument to generate a tone with a clearly identifiable and stable frequency is a defining characteristic in musical acoustics. Instruments capable of producing such tones are generally considered to have a defined musical note. Examples include a piano key struck or a tuned timpani drum resonating at a specific frequency. This characteristic contributes significantly to melody and harmony in musical compositions.
The inherent complexity of a cymbal’s physical structure and vibrational modes introduces a level of sonic ambiguity. Instead of a single, dominant frequency, cymbals produce a complex blend of overtones and partials. The metallic composition, size, shape, and thickness of the cymbal all contribute to the unique sonic signature. The resulting sound is often perceived as shimmering, complex, and indefinite in its tonal center.