The Roadie Tuner is a mechanical tuner interfaced with a mobile application. The smartphone captures the sound of the guitar, and then sends commands to Roadie via the Roadie Tuner App (iOS or Android). The application has a very interesting feature called Instrument Doctor. Every time you tune your instrument, the application is able to evaluate the elasticity and tonal signature of each string. Then, the application is able to inform you on the quality of the guitar strings letting you know that it is time to restring the instrument.
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