is a cool resource for classical music.
They have a page that describes and shows
The great majority of musical instruments fall readily into
one of six major categories:
bowed strings, woodwind, brass, percussion, keyboard,
and the guitar family, the first four of which form the basis
of the modern symphony orchestra.
Check it out with your child. . .
then go to SFS KIDS SUPER COOL Music Site
and experiment online
This is last one is a favorite so I am going to let you go straight to the site to get
a ton of brilliant lesson plans and idas for teaching
toddlers and preschoolers