Hi chongmc, do check out www.music-at-colourfulclouds.com for an excellent children music foundation course (for kids from 5 yrs old). New classes on Sat 12pm and 1pm opening in Oct 2009, so hurry and not miss this opportunity to enrol your child for a most unique music course in Singapore :=)
I am a piano teacher. I m in this line for 11 years. I personally think that, all shall depend on how your child can take it and how parent and environment is going to influence your child to love music. As in stimulate brain, also depend on how you focus on your child's fine motor skill.