1)   enable Guitar Tuner 4.0 enable Guitar Tuner is a powerful instrument tuner which provides precision tuning with a range of preset instrument tunings, styles and transpositions. 2)   enable Encore 4.0 enable Encore is a powerful instrument tuner and metronome which provides precision tuning and interval timing, with a range of preset instrument tunings, styles and transpositions, and preset and custom speed intervals.