You can press the space button so the circles can pulsate if you want :^)
Songs I used: Trance: Now or Never - Sneijder & Mark Leaning Hardstyle: Heartbeat - TCM Moombahton: 4U - Aero Chord Neurofunk: Dark Glade - Righten Deep House: Bouncin - SPVDES & Jackdaw Future Bass: Restart - Subtract Techno: Techno Reactor - DJVI Electro House: PLAY - Tokyo Machine Electro: Dragonfly - Nitro Fun Chiptune: Chronos - Danimal Cannon & Zef