LATEST GMA NEWS - GMA will conduct all regularly scheduled classes today. - GMA will not be enrolling children for the rest of the summer. - If you would like to enroll your child for this fall, our next Introductory Lessons will be on Sept. 27th, 2025, for kids that want to begin training in October . All Introductory Lessons are by appointment only. - Beginner adults (15 years and up) may join at any time, but by appointment only. - To set up an appointment call 978-433-8772 or email us at [email protected] and be sure to include your phone # and a convenient time to call you. Our phone# does not accept text.