Dritte Stimme zu Bachs zweistimmiger Inventions

Title: Dritte Stimme zu Bachs zweistimmiger Inventions
Instrumentation: For any keyboard instrument
Year: 2019
Duration: 25 min.
Premiere: Gothenburg, Sweden 2020
Performer: Joel Speerstra

Invention 14

Inventio #14 (BWV 800, J.S. Bach, 1723)

Zweistimmige Inventionen als „Schule des Triospiels“, Invention 4 (Max Reger, 1903)

Lachenmann-Bach2

Dritte Stimme zu J.S. Bachs zweistimmiger Invention d-moll BWV 775 (Helmut Lachenmann, 1985)

Invention 6

Inventio #6 (BWV 777; J.S. Bach, 1723)

Why add a third voice to J.S. Bach’s two-voice inventions? Certainly not to turn each invention into a three-voice sinfonia, which would serve only a mediocre pedagogical function (such as Max Reger’s “Schule des Triospiels” with his added third voice as pedal studies in the form of trio playing). One possibility is the manner in which the composer Helmut Lachenmann adds his third voice to Bach’s D minor invention. The added third voice does not function as a third voice typically would in a three-voice sinfonia where the presentation of the main motive is distributed more or less equally among the three voices. Although Lachenmann’s added third voice supports the implied harmonic structure of the invention, it often does so in modest and even banal ways, giving it, at least on the surface, a lesser weight than the other two voices.

One wonders why Lachenmann resorts to such a modest or even banal third voice? A possible answer can be found in his writings on music. In describing his collection of seven piano pieces Ein Kinderspiel (Child’s Play) from 1980, Lachenmann states that they employ simple patterns (such as a chromatic scale up and down) that are “totally unmusical, banal, or primitive to such a degree that you’re able to hear what actually happens in the background of that sound…where imagined melodies come through the resonances.” Indeed Lachenmann’s added third voice to the D minor Invention draws a listener’s attention to the motivic and harmonic resonances that proliferate throughout the invention thus bringing Bach’s original two voices into a foreground perspective. Such perspectivizing lays bare the mastery of Bach’s compositional technique and heightens a listener’s level of concentration.

My own added third voice to each of Bach’s fifteen inventions seek an alternative relationship by destabilizing the compositional balance of Bach’s original two voices through tightly weaving (by adhering to the rules of Baroque counterpoint) something akin to a virus into each invention. The added voice, as a kind of repulsive force, subtly pushes apart the original voices (through such elements as disjointed and jarring cross-relations, or passing consecutive dissonances as if to suggest slippage between voices) to unravel not a mastery of contrapuntal technique but its fragility that human thought and labor continually endeavor to overcome. Such fragility, I hope, can decenter our desire as listeners for technological control and allow for a more materialist listening of Bach’s musical structures.