Opus 40, the popular Hudson Valley attraction and home to the world renowned earthwork created over 37 years by sculptor Harvey Fite, is bringing back a longtime tradition, its annual Labor Day Weekend Concert. This year’s event will feature two acclaimed local acts who are fusing elements of jazz, funk, electronica, ambient, folk and world music– Spaghetti Eastern Music and Gus Mancini’s Sonic Soul Band with Nfamara Badjie.