Take a look at the free iPhone app from the record company Ghostly International for the iPhone that promotes music sales from its catalog of 50 or so artists using a clever iPhone app named Ghostly Discovery. The iPhone app uses a color scale to determine your mood and offers ways to set your style based on the music’s speed and also whether it is organic or digital in nature. After you customize a radio station you can start listening to it and from there you can read artist bios, and also buy the song on iTunes. Songs are played in full, not just samples. Here are the color codes used in the Ghostly app:

Red: Aggressive
Orange: Frenetic
Yellow: Energetic
Green: Neutral
Blue: Laid Back
Purple: Introspective
Pink: Sad

Ghostly Discovery has combined in app sales with brilliant design and its mood categorized database of songs to create a winning iPhone app.

Here is a video demo of the Ghostly Discovery app on the iPhone

This 3rd Party App is available at the Apple iTunes AppStore. Browse the full list of all AppStore apps filed under the AppStore category.