method:
First, go to the Android Market or App Store to search for the tuning software and download it.
Note that after downloading, the phone will prompt whether recording needs to be enabled, and you should select Allow.
Open the software interface and touch item a according to the prompt.
Click the setting button;
Enter the selection interface, the frame of the guitar lights up, proving that it is now in guitar mode. The ukulele on the right selects small u, and the default tone is the basic tone gcea for beginners to tune four strings.
After selecting the small U, click the arrow in the upper left corner to return.
Return to the meeting, click to automatically select the strings for debugging to complete the setting