Don’t let the Tallis Scholars’ name fool you: There’s absolutely nothing academic about this group of British singers, who can croon with enough passion, emotion and intimacy to make you blush. Founded in 1973, the ensemble specializes in performing a cappella sacred vocal music from the Renaissance. These trailblazers helped spearhead the now widely popular period-instrument movement, and their 50-plus recordings have documented some of the greatest works composed during the 15th century. In Nashville, the Tallis Scholars will devote their entire performance to the music of Spain’s most important Renaissance composer, Tomás Luis de Victoria. His music is known for its lyrical appeal and mystical intensity. Tallis Scholars’ concert will feature, among other things, Victoria’s unquestioned masterpiece, his Requiem Mass for the Empress Maria.