Cantus belts out a number at NPR as part of the popular online "Tiny Desk" concert series. Photo provided by NPR

The local all-male choral ensemble Cantus is getting a big national-awareness bump Monday as the featured performers in the music office at National Public Radio's headquarters in Washington, D.C. The so-called "Tiny Desk" concert series, meant to be consumed as workday breaks on PCs and mobile devices, spotlights musical guests who have come there for interviews and studio recordings. The popular series has hosted a wide variety of musicians ranging from Macklemore to Hilary Hahn. Cantus, who will be on "A Prairie Home Companion" this Saturday, sang a 15-minute set of "Wanting Memories," "Zikr" and "Ave Maria." Check it out here: http://www.npr.org/series/tiny-desk-concerts/