This is true!
Gamespol has decided to make Find the Melody free to play, also - with no in-app purchases.
Here's a quick look at the gameplay:
Find the Melody is a mobile music game, where levels are classical masterpieces and mechanics are based on your musical skills and sense of rhythm instead of agility. You can pick one of 10 characters with different instrument.
Find the Melody combines entertainment and education.
Here are all the characters and instruments: