I've been taking my granddaughter to these classes for nearly two years and they arereally relaxed and terrific fun for the kids. They are pitched at a level that is just right for the kids and they are ancouraged to join in but not forced to do so. All the kids have times when they zone out a bit and that is fine.
My granddaughter has learn to love to sing from these classes and a lot more besides, I highly recomment them