Brand new, unused * Instantly shows the location of Do-Re-Mi on the guitar fretboard (of course, it can be used for instruments other than guitar as well). * Knowing Do-Re-Mi facilitates smooth communication with other parts in ensembles, etc. * The sense of Do-Re-Mi scales cultivates musical knowledge and playing skills. * During tuning, it's easy to notice if you're winding the strings too much, reducing the risk of string breakage (many beginners don't notice over-winding with conventional tuners). * 3-pattern switching, including simultaneous display of Do-Re-Mi scales and ABC (English letter) notes. * An "いいね!!" (Like!!) mark is displayed when the pitch is correct. * Automatically turns off after 3 minutes of inactivity. Guitar tuner, tuning, musical instrument