Roughness between note partials determines perceived musical dissonance

Evidence

Roughness is closely related to consonance and dissonance perceived between two or more musical notes; the more the partials of the notes generate roughness, the higher the perceived dissonance is. This leads directly to basic melodic and harmonic structures in music. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1350

Categorization

• ADDENDUM: Connects to the dissonance/consonance physics of why certain intervals (e.g., perfect fifths) sound stable while others beat and clash — useful in describing acoustic harmony in trees-as-infrastructure or general soundscape material.
• XREF: connects to: Consonance and dissonance judgments stem from critical bandwidth mechanics — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 934