Why tune the guitar?
Tuning your guitar is essential for the notes and chords you play to sound harmoniously together. Impossible to play simply if your guitar is not granted … Like any instrument, it is necessary to be granted, to play in a group or on play-backs / backing tracks. To allow all musicians to be tuned together, most tuners are tuned to the same tuning fork, the 440Hz. This tuner is tuned to this frequency.
The guitar tends to quickly detune, be it between 2 uses or while you play. They are mainly made of wood and are sensitive to changes in temperature, humidity, pressure on the ropes, etc. So take the time to check if your guitar is tuned before each use!