Alarm: Play Audio Every Second of X

I need my android phone to play a wav/mp3 file every second of X (e.g. at 10:10:X, 10:11:X, 10:12:X and on) while I open other apps. I need a very simple application: - 1 GUI to select the second of X, start and stop the service, and select wav/mp3 file to be played, and - 1 Foreground Service that allow me to stop the service via notification action, - Android target version is 6+. - Built using Android Studio 3.0.