There are a lot of musical “instruments” available for the iPhone and iPod Touch. While some of them are quite good, others are mediocre at best. The bad ones are usually ones that have strings involved, such as with guitars. The small screens on those devices just don’t work well for this type of app. The iPad is changing that, though. Thanks to the large screen, apps with string instruments in them are likely going to become the new must-have musical apps.

The Air Harp is no exception. It turns your iPad into a 15-string harp. It features 15 different strings, and even comes with sheet music for you to play. The sounds are quite soothing, as well.

If you enjoy creating music, you may want to take a look at this app. It’s set to be released on April 3rd. Thanks to TUAW for surfacing this app.