Field Works is the project of Indianapolis based sound artist Stuart Hyatt. He announced the release of a new album titled Ultrasonic which will be out on May 1st via Temporary Residence. According to the press release, it is perhaps the first-ever album to use the echolocations of bats as compositional source material.

For this special album, Hyatt has assembled an extraordinary group of contributors: Eluvium, Christina Vantzou, Sarah Davachi, Ben Lukas Boysen, Machinefabriek, Mary Lattimore, Felicia Atkinson, Noveller, Chihei Hatakeyama, John Also Bennett, Kelly Moran, Taylor Deupree, Jefre Cantu-Ledesma, Julien Marchal, and Player Piano. Ultrasonic is part of a broader storytelling project about the federally endangered Indiana bat. Generously funded by the IUPUI Arts & Humanities Institute and the National Geographic Society, each album contains an official printed booklet of The Endangered Species Act of 1973.

We already shared “Dusk Tempi“;”The Circle” is Chihei Hatekeyama’s contribution to the project. Listen below.