RIOULT Dance NY, a leading American modern dance company with a classic sensibility, introduces new modern classes for young Dancers, ages 10-14.  Classes offered will range from Advanced Beginner-Intermediate Modern Class.  The Fall Semester classes will run October 4-January 17 on Saturdays from 10am-12pm at Pearl Studios, 500 8th Avenue (b/t 35th & 36th Streets).  Tuition is $540 per semes…