Gunther's Grass began in 2005 as a collaboration between Marcelo Radulovich and Christopher Adler, to bring together two ancient drone-based instruments from across the world, the medieval European hurdy-gurdy and the Lao/Northeast Thai mouth organ khaen. Both instruments present the idiosyncracies of their respective traditions and the instabilities of delicate acoustic instruments. Through the lens of contemporary improvisation, Gunther's Grass explores these traditions and the tension between the precision of tuning characteristic of drone-based music and the instability of the real instruments in their environment.