Halo sees Psathas display a masterful control of tension across the work's three movements. Atmospheric electronics blend with the resonance of the piano in Red Halo, creating a backdrop for the cello's moody improvisation-like statements. The momentum picks up with second movement Stacia's flowing piano ostinato and singing cello lines, with understated textural shifts unfolding throughout. The intensity escalates with the manic final movement, Angelus, as dissonant chords combine with bursts of frenzied melodicism.