This is part of a 10-week session of Music Together for infants 4 weeks to 8 months. It is at the Olenka School Of Music at their Columbia location on Berger Road. The class meets every Wednesday at 11:30 a.m. for 45 minutes.
If you want to attend I believe you have to register in advance with the school. Their web address is www.olenkaschoolofmusic.com and their office number is[masked]-0770. The spring schedule lists the course as $183 for 10 weeks plus registration fee, but thanks to Aimee, you can get $10 off as a member of New Moms of Columbia if you register by 3/29.
The school's website describes the class saying "infants express their musical development differently than older children. This class is specially designed for parents who want to learn as much as possible about music development in infants. Learn some fascinating music activities you can do at home with your baby."