OPEND is an experimental trio—featuring cellist Daniel Hass, electronic artist and percussionist Raimundo Atal, and poet Jameel Martin—that synthesizes acoustic free improvisation, real-time electronic manipulation, and live-composed spoken text. Functioning as a responsive, open laboratory, the ensemble builds immersive sonic landscapes from the ground up. Hass's foundational cello improvisations, which blend classical, jazz, and extended techniques, are instantly looped, transmuted, and expanded by Atal's digital processing and dynamic percussion. Simultaneously, Martin live-composes poetry as a direct reaction to the unfolding musical environment, utilizing the rhythm of his typing as a percussive counter-rhythm before voicing his text. Operating entirely beyond traditional genre borders, OPEND creates infinitely additive, self-referential worlds that bridge organic acoustic resonance, digital architecture, and spontaneous poetics.