Universal has launched Six-String for the iPhone. The new app recreates the guitar playing experience using tracks from studio masters. Users are required to pluck, strum and change chords to play along on six included songs. Titles include "You Give Love A Bad Name," "Runnin' Down A Dream," Thnks Fr Th Mmrs," "Show Me The Way," "According To You" and a new track, "Raised on Rock," from the upcoming Scorpions album Sting in the Tail. Additional content, available as in-app purchases, includes 20 songs from artists such as Beck, Maroon 5 and Robert Palmer, with more tracks planned.

The app has a practice mode for learning the game, along with a studio mode for competition and high-score rankings. Each track can be played at three levels of difficulty, with sound focused only on the guitar or delivering the entire studio master. The app also connects to its own free community, the Plus+ Network, allowing gamers to offer challenges to each other and post high-scores. Scores can also be posted via Facebook or Twitter or emailed.

To coincide with the game's launch, the person with the highest score on the Six-String™ Hall of Fame leaderboard, via the Plus+ Network, at exactly 6:00 PM PDT on April 6, 2010 will be eligible to win a Fender American Deluxe Stratocaster.

The app is compatible with iPhone OS 3.0, working on both the iPhone and iPod touch. It is $5 and available now.