If you want to get young children making music this could be just the thing

LOOPIMAL from Lucas Zanotto on Vimeo.

This is just so lovely to look at I can't help but think it would be wonderful for small children to play with. So if you have any of those then you should consider it. Here's what Loopimal has to say about itself ...

Build loops! Create sequences! Compose music!

LOOPIMAL is a building kit of handcrafted animations and sounds.

The possibilities of creations and compositions are endless.
With an intuitive fun gesture they can create sequences for different animals.
The content is on melodic, rhythmic or movement bases.
There is no goal, no wrong or right, it’s a safe kit for creation.

Note: We strongly recommend to play LOOPIMAL on iPhone 4s and newer, iPod touch 5th gen, or iPad 2 and newer.

LOOPIMAL costs $2.99 on the app store