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Nathan Koci
Nathan Koci is a composer, performer, and music director working across a variety of stylers and disciplines, from theater to dance to improvised and experimental musics. As an accordionist, he has performed and recorded with Sam Sadigursky, Guy Klucevsek, South African artist William Kentridge, Maira Kalman, the Micheal Leonhart Orchestra, and the improvising chamber quartet The Hands Free (Caroline Shaw, Eleonore Oppenheimer, James Moore).
As a seasoned music director, he has conducted Tony-award winning shows on Broadway, Off-Broadway, and internationally. Credits include Sufjan Stevens and Justin Peck’s Illinoise, Anais Mitchell’s Hadestown (1st National Tour), Daniel Fish’s reimagined Oklahoma! and Most Happy In Concert, and Ted Hearne’s The Source.
He gravitates towards new works, having recently collaborated with William Kentridge and a cast of South African musicians and performers on the multi-modal theater work The Great Yes, The Great No as a musical arranger and performer, touring internationally through 2026.
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Take Five with Accordionist Nathan Koci

by AAJ Staff
Meet Nathan Koci Nathan Koci is a composer, performer, and music director working across a variety of styles and disciplines, from jazz to theater to dance to improvised and experimental musics. His album Solomon Diaries Vol IV & V (Adhyaropa Records, 2025) with clarinetist Sam Sadigursky is a modern take on Klezmer jazz. As an accordionist, he has performed and recorded with Sam Sadigursky, Guy Klucevsek, South African artist William Kentridge, Maira Kalman, the Michael Leonhart Orchestra, and ...
Continue ReadingMichael Leonhart Orchestra: The Normyn Suites

by Angelo Leonardi
Gli eclettici sviluppi orchestrali di Michael Leonhart, tra maestosi affreschi evocativi e trascinanti momenti rock e soul, tornano a entusiasmarci con questo magistrale The Normyn Suites, dove la poetica della leggerezza convive con scelte di vivo impatto ritmico e timbrico. Le due forti propensioni musicale dell'autore sono ben bilanciate: quella impressionista (che ha caratterizzato opere ammalianti come Lovers di Nels Cline e il suo The Painted Lady Suite) e quella legata alla popular music, maturata nelle collaborazioni con Steely Dan, ...
Continue ReadingKlezmer-jazz Duo Sam Sadigursky And Nathan Koci Release 'Solomon Diaries: Vol. IV And V'

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AMT Public Relations
Combining Jewish spiritual and Klezmer music with post-minialism classical, jazz, and tinges of American folk, clarinetist Sam Sadigursky and accordionist/multi-instrumentalist Nathan Koci release the next two volumes of The Solomon Diaries (Adhyaropa Records), a quintet of evocative albums reflecting on the Borscht Belt region—the primary Jewish resort community that helped shape 20th-century American culture—and also exploring contemporary immigrant and Jewish experiences. Both a compelling musical remembrance of a bygone era and a look to the future, The Solomon Diaries: Vol. ...
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"The 104 minutes of music spread across three CDs features Sadigursky’s compositional and instrumental talents on clarinet, aided nobly by accordionist/multi-instrumentalist Nathan Koci. The interplay between the duet partners is strikingly telepathic, as on “Callicoon,” where clarinet and accordion perform such speedy, acrobatic flips that they seem to morph into one another. "
- Solomon Diaries, Vol I-II Review, Chronogram
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From: Solomon Diaries Vol IV & VBy Nathan Koci