Four Passes for BYOK -kid friendly concerts that take place at 11am on Sundays:

B.Y.O.K.™ (Bring Your Own Kid): Family friendly music has progressed way beyond sing-alongs and clapping—the new generation of performers is out to rock your wee ones silly and keep you entertained in the process.

And we've got the cream of the crop! So whether you're a mom, dad, aunt, uncle or cousin, pack up the posse and come on in for a bagel, a coffee or juicebox and some tiny tushy-kicking tunes. It's not your granny's kids' music (unless she's one of those hip NYC grannies, with the fancy shades and Barney's wardrobe).

http://www.92y.org