First, have lots of music at home: sing, play, dance! Take the family to concerts: classical, pop, rock, country, cultural, etc…
See which ones they choose to like. Amrita taught herself the acoustic guitar, Sam is learning electric guitar from an online tutorial, and Arian is tinkles on the piano everyday (his current fav is Bach’s Minuet in G).
While you are at it, please look at Arian’s “passion” at the moment, click on and help him win http://justinbieber.getmusicasia.com/contest/vid305/
or enjoy some music below