We attended Barrington Stage Co.’s production of “Carousel” last night, and what a treat!  Music, choreography, costumes, and a timeless script — guess that’s why it’s been a favorite musical since 1945.  The voices of the lead actors were matched by their incredible energy.  It will be performed through July 11 (at prices way below Broadway),  and we think it’s just one more reason to come to the Berkshires.