For the six works on his album Horizontal Drift, composer Christopher Trapani chose an unusual array of instruments capable of producing a soundworld of microtones and extended timbres.
The album opens with a piece for Romanian horn-violin (played by Maximilian Haft), a violin with a metal resonator, and horn used for amplification. Its sound is tinny and thin, like an early 20th-century recording of a violin. Trapani’s writing for it consists of contemporary gestures, but even with the electronics that augment the instrument’s naturally unnatural voice, the piece conserves an echo of the folk milieu in which the horn-violin is usually encountered. Bookending the album is a second piece for bowed string instrument—Tesserae, written for the viola d’amore, a Baroque-era viola notable for its array of sympathetic strings. Trapani eschews an obvious, quasi-Baroque sound for a melody that incorporates gliding ornaments reminiscent of Hindustani vocal music. It’s sensitively played by Marco Fusi.
Three pieces were composed for unconventionally tuned instruments. Linear A, named for the still-undeciphered ancient Minoan script and performed by Amy Advocat, is for clarinet tuned to the 13-step Bohlen-Pierce scale, and live loops—a mechanism that sets in motion a swooping counterpoint of self-replicating melody. The tryptich Lost Time, for scordatura piano (played by Marilyn Nonken) is a kind of dialogue between Bob Dylan, whose lyrics provide the movements’ subtitles and hence emotional overtones, and spectralist composer Gerard Grisey, whose idea of the varieties of subjective ways of experiencing time in music set the agenda for the textural loading of each individual movement. Forty-Nine, Forty-Nine, for player organ tuned to a 31-step scale, keeps itself just this side of total harmonic chaos. For the title track, featuring guitarist Daniel Lippel on quarter-tone guitar, Trapani creates an intricately spatialized, electronically augmented sonic atmosphere built up of delayed and overlaid single-notes and harmonic fragments, which give the piece an undulating and beautifully unsettling, harp-like quality.