A single performed melodic line can be heard as multiple simultaneous parts

Evidence

Music in which grouping of notes together by frequency proximity pro­ duces the sensation of a number of parts being played, even though only a single line of music is being performed, includes works for solo instruments such as the Partitas and Sonatas for solo violin by J. S. Bach. — David Howard, Jamie Angus, coustics and Psychoacoustics, 1668

Categorization

• DEFINE: Concrete definition of auditory streaming via Bach’s solo violin works — how one line becomes perceived parts.
• SEED: An essay angle: how perceptual grouping makes a single voice (musical or otherwise) legible as several, a metaphor for polyphony in any medium.
• corroborated: 2 independent passages support this claim — David Howard, Jamie Angus, coustics and Psychoacoustics, 1668
• XREF: connects to: Alternating timbres can split a single melodic line into separate perceived streams — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 1629; A strictly periodic tone can still be perceived as two distinct notes; Two simultaneous pure tones may fuse rather than be heard separately.

Broader Connections

• A strictly periodic tone can still be perceived as two distinct notes #corroborates (0.95)
• Two simultaneous pure tones may fuse rather than be heard separately. #complicates (0.80)