Finding concerts featuring works by Antonín Dvořák is no problem, especially in Prague. Posters and placards boast concerts daily by the famous Czech. But don’t be afraid to go a little beyond the short classical “easy listening” pieces such as his beloved “Humoresque” for the violin, or “Songs My Mother Taught Me” for soprano soloist. A master is a master, in any form or style, no matter how massive the music.