J. Riis is a distinctive voice in contemporary jazz arranging, known for their sophisticated harmonic palette and inventive reinterpretation of classic jazz repertoire. With a background rooted in both traditional jazz pedagogy and modern compositional techniques, Riis crafts arrangements that honor the original spirit of a piece while infusing it with fresh, unexpected textures. Their singular contribution to the jazz band library showcases a meticulous attention to detail and a profound understanding of ensemble dynamics, enriching the performance landscape for musicians and audiences alike.