Los Tres Reyes, which means the three kings, is considered one of the last of the great trios from the golden age of boleros. The trio play a free concert Friday, June 27, at the Mesa Arts Center.

When I first took a look at the cover of Romancing the Past (Smithsonian Folkways), the beautiful new album from veteran Mexican trio Los Tres Reyes, the tux-clad, guitar-wielding musicians called ...