Frank Fairfield and J.R. Kaufman study the historically informed performance of Western art music from the late sixteenth to early eighteenth centuries. Their repertoire includes polyphonic bicinia of the late Renaissance, divisions on a ground, and sonatas da chiesa and da camera of the High Baroque. Primarily known for studying and performing Anglo American and Eastern European vernacular music, respectively, Fairfield and Kaufman bring the sensitivities of natural music to the practice of high art music.