With new venues such as Contact and Sankeys opening their doors in Tokyo this spring, there is hope for a resurgence in the underground electronic music circuit in 2016. But with a glut of EDM mega-bashes, the festival scene for mature dance music fans can sometimes look a bit bleak.

A gathering in the mountains of the Izu Peninsula is trying to add a little color — and funk — to a monotone canvas.

"I love all festivals, but it would be good to see more musical variety," says Rainbow Disco Club chief producer, Masa Tsuchiya. And most clubbers would be inclined to agree. RDC, which will take place this year from April 29 to May 1, has been providing quality tunes since its inception in 2010. Previous years have seen internationally revered DJs and beatmakers such as DJ Harvey, Todd Terje and Moodymann enter the booth, so fans of the festival have come to expect the highest standard of disco, house and funk at this annual party. And sound quality too — the Funktion One system is among the most finely tuned out of the country's outdoor events.