Application Features:

- Guitar fine tune untill the 0.01 Hz.
- Touch to play sound of selected string for example.
- Easy selecting and tuning every guitar string.
- Graphical scale for measuring the frequency of sound oscillation.
- Interactive language changing.

- Available several popular variants of guitar tuning:

* E strings standard
* B standard
* Open A
* Open C
* Open C "Led Zeppelin"
* Open D "Dylan"
* Open D6
* Open E
* Open G "Stones"
* Low C "Celtic"
* Drop D
* Drop C
* Double Drop D
* Alternative Cross A (AEAEAE)
* BASS 6, 5, 4 strings

Guitar tunings assign pitches to the open strings of guitars, including acoustic guitars, electric guitars and classical guitars, among others. Tunings can be described by the particular pitches that are denoted by notes in Western music. By convention, the notes are ordered from lowest-pitched string (i.e., the deepest bass note) to the highest-pitched (thickest string to the thinnest).