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For stretches of that performance, I longed for a recording of this “Buddha,” and had a similar during the Saturday afternoon set, when Richard Valitutto took on Eastman’s through-composed, fully notated “Piano 2.”

The International Contemporary Ensemble had commissioned the evening’s first through-composed piece, “Songs and Stories of Hopes, Dreams and Visions,” and throughout, the players were on Ewart’s same wavelength: intense yet generous.

Schumann’s nontraditional, through-composed form, seamless without breaks between movements, Reich has noted, bears the influence of Mendelssohn’s First Piano Concerto.

“It’s completely through-composed,” Shapiro notes.

The five works on “Belladonna” contain through-composed parts for the Mivos Quartet — a group that has also excelled in the music of the jazz trumpeter Ambrose Akinmusire — and show Halvorson’s keen ear for the slightly bent earworm.