*It has been reported that some Android devices may restart the OS when the instrument is connected to the app on the smart device with a USB cable after installing the Android OS security update released by Google in early March 2021. We are currently reporting the issue to Google and requesting a response. We apologize for any inconvenience this may cause. Android devices confirmed to have the problem: Pixel 4a, Pixel 4XL Have you ever tried to figure out what the chords are to your favorite