The National Sawdust is set to present “Variant 6” on May 20, 2022. The ensemble, which includes Jessica Beebe, Rebecca Myers, Elisa Sutherland, Steven Bradshaw, James Reese, and Daniel Schwartz, will perform from its new album “New Suns” the very day that it debuts. The program includes Benjamin C.S. Boyle’s Supplice,” Bruno Bettinelli’ “Madrigali a cinque voci miste,” Jeremy Gill’s {…}