Happy Birthday is a web-based party live background generated by CANVAS powered by JavaScript. This show a lot of random colorize particles in the background.
Click or touch the page for playing Happy Birthday music.
Demo: https://basemax.github.io/HappyBirthDayJS/
Source: I followed the same idea but I did it in an easier and cleaner way. Enjoy your party and dance. The music copyright is for Andy and the music name is Tavalod.