Hi EE mom,
Can you kid understand any Cantonese? Actually, there is a course at Music Room@Central. they used Manderine teaching material which is Carl Orff Methodology. However, the instructions are mainly Cantonese.
Carl Orff is a great teaching methodology. I am a music educator who makes use of Orff methodology a lot. It's great. You can check a lot of information on-line.
Besides, I am teaching a Music Enlightenment Course at APA which makes good use of Orff methodology too. Please check the course description at APA. It will give you a clear inroduction of music learning of Orff.
Feel free to leave a message for further information about early childhood music learning.
Maggie Ho