tone color melody
A compositional technique (Klangfarbenmelodie) where a melody is distributed across different instruments, with the changing timbres becoming the primary musical interest.
In Depth
Klangfarbenmelodie (German: "sound-color melody") was theorized by Arnold Schoenberg in his Harmonielehre (1911) and realized most fully by Anton Webern. The concept treats timbre as a structural element equal to pitch and rhythm — a melody passed from flute to clarinet to muted trumpet creates a continuously shifting kaleidoscope of tone colors, even if the pitches and rhythms are simple. Each instrument colors even a single note differently.
Webern's orchestration of Bach's Musical Offering Ricercar is the most famous example: Bach's single-line fugue subject is divided among different instruments, with each note receiving a different timbre. The result transforms a monophonic line into a pointillistic tapestry of colors. The technique profoundly influenced post-war serialists who extended serial organization to timbre itself. It also anticipated the timbral thinking of spectralist composers and electronic music producers. In popular music, producers who distribute a melody across different synthesizer patches are unconsciously applying Klangfarbenmelodie principles.
Webern's orchestration of a Bach fugue distributes a single melodic line across a dozen different instruments — each note gets its own unique tone color, turning counterpoint into a kaleidoscope of timbres.