UE4 Particle Effects Demo (Cave Demo)

Hello,

anyone of you guys know the title which is played in the Background?
Who has created it and what´s the tiltle called?
Would be nice if you can help me.

https://docs.unrealengine.com/latest/INT/Resources/Showcases/Effects/index.html?utm_source=launcher&utm_medium=ue&utm_campaign=uelearn

Thanks a lot.