Stephen O'Malley (Sunn O)))) presents his towering, immersive orchestral composition Guids, commissioned and performed by l'Orchestre de Nouvelles Crations, Exprimentations et Improvisation Musicales. O'Malley was approached by pianist and composer Frederic Blondy to write a work for the orchestra. Understandably intimidated by the prospect, but encouraged to "just be punk rock about it," the preternaturally gifted composer has conceived a technically demanding and richly rewarding long-form drone piece intently focused on harmonic experimentation and overtone study. During its 35-minute lifespan, it requires the musicians to sustain pitches for several minutes, yielding spectra of eliding dissonance rent in sliding tone clusters and lucent geometries punctuated by a similar whipcrack percussion to that used in Sunn O)))'s 2014 collaboration with Scott Walker.