Specializing in a cappella music of the Renaissance and the 20th and 21st centuries, the Ars Nova Singers of Boulder, Colorado are presenting their 26th concert season in 2011-2012. The professional-core vocal ensemble conducted by founding Artistic Director Thomas Edward Morgan is composed of 36 selectively auditioned choral musicians from the Denver/Boulder metropolitan region. In its history, the Ars Nova Singers has presented over 250 performances of more than 100 different concert programs.