Smule’s CTO & co-founder, Ge Wang, makes it look easy in the video embedded above. But, Smule’s new Magic Guitar, presents challenges even if you know how to play a real guitar.

I found I wanted to see actual guitar strings to give an indication of where fingers should rest while waiting for song notes to appear. The app is designed for the iPhone and iPod touch. It doesn’t scale for play on an iPad.

The app has achievements, badges and leaderboards to let you compete with friends if you like. Smule says that the app’s songbook offers a huge catalog of legendary artists including The Rolling Stones, Coldplay, KISS, Lynyrd Skynyrd, Sublime, Credence Clearwater Revival, Santana, Tom Petty & The Heartbreakers, Styx, Poison, Bruno Mars, Train and more. The app is free and comes with a couple of free songs. In-app purchases of song packs range from $2.99 to $9.99.