Rokus de Groot is professor emeritus of Musicology at the University of Amsterdam and a composer. His work includes “From Past to Present and from Listening to Hearing: Final Indefinable Moments in Bach’s and Stravinsky’s Music,” in On Religion and Memory, ed. Babette Hellemans et al. (Fordham University Press, 2013) and, as composer, “For Dhruba” (2017), an homage to the sarangi maestro Pandit Dhruba Ghosh.