Using an iPhone as a musical device is an interesting application of a cell phone. While known as a music player designed to allow users to consume music, developers have created apps that can transform the iPhone into a musical device to create music as well. One iPhone app that makes this possible is Ocarina, an app that transforms the iPhone into an ancient flute-like instrument. Sensitive to both touch and breath, this app allows users to play and create music on the iPhone. This, however, is not the only way to use an iPhone as a musical device. Two years ago, I posted this blog post showing other apps that allow an iPhone to be transformed into other musical instruments.
The video below profiles experiments being conducted at Stanford University in using a mobile device such as an iPhone/iPod Touch to create a mobile phone orchestra.