I'm a beginning developer. I made one "musuc" app - Music Strobe Light Stroboscope.
I wonder if you like it. Please check out and write your reviews and suggestions.

on Google Play: https://play.google.com/store/apps/details?id=today.app.a.amusicstrobe

Description:
Music Strobe Light Stroboscope catches the music beat. Color screen and LED Strobe.

How to make a nightclub stroboscopic light show:
1 Turn on the music, turn off the light.
2 Choose screen or LED strobe.
3 Set strobe sensitivity.
4 Dance! :)

The sensivity menu is hiding itself in 10 seconds (or click BACK).
LED strobe continues to work with the screen off.