Index Filicum borrows its name from two exhaustive catalogs of fern species published by botanists Thomas Moore and Carl Christensen during the Victorian Era, when a strange obsession with ferns—pteridomania—ran rampant. The work is derived from an inventory list of all of the species currently housed in the Lincoln Park Conservatory’s Fern Room. Peters conscripted four vocalists to improvise melodic lines over drones derived from the resonant frequencies of the space, using the Latin names of the pteridophytes present as lyrical content, while their common names are quietly whispered in the background.

Curated by Lou Mallozzi for Experimental Sound Studio's Florasonic series, presented in partnership with the Chicago Park District.

Admission is free.