MusicGoals Demo 

ear training, sight reading, and music theory applied to piano, guitar, violin, viola, cello, and bass - MusicGoals offers study, practice, and testing to improve skills, gain knowledge of instruments and music theory, and train the musical ear.
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In-Tune Multi-Instrument Tuner 

Tune your musical instrument quickly and accurately with this digital tuner. Uses microphone or direct electric guitar input for tuning. You can tune guitar, banjo, violin, and many other instruments. Has choice of gauge and pitch graph views.
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