If you treat your child to just one class, this should be it. Music By The Season is varied, active, tender, and educational. Alison keeps the kids as her focus, yet includes parents in a comfortable way. She integrates simple instruments and props, but the songs themselves are great: catchy, in tune, and enhanced by Alison's lovely voice, thoughtful gestures, and clear instruction of lyrics. Our baby was 8 months-old when we started, and we saw great development in her rhythm and engagement with music, as well as the range of sounds she began making after each class. Bonus: the classes take place in a beautiful room with many plants, instruments, and sunshine.