Yesaya Wilander Soemantri, or better known as Echa Soemantri, Indonesian young drummer who is already well known among musicians. He plays energetic and "cool", a style that has characterized the drummer.
He was born in Jakarta July 7, 1989. He is widely known as a freelance drummer who is ready to play a wide variety of genres. He has been engaged in several major events such as the Jakarta International Java Jazz Festival and International Jazz Festival. Not to mention some of the musicians who put his name on the list of players in the band's entourage. Musicians like Erwin Gutawa, Tompi, Abdul to name but a few. Now, in addition to playing stages around the country, Echa as well teaches at the Jakarta Music School.