Esbjörn Svensson Trio (or e.s.t) were a Swedish jazz piano trio formed in 1990 with Esbjörn Svensson (piano), Dan Berglund (double bass) and Magnus Öström (drums). They are not to be confused with Electro Shock Therapy or an Italian band EST, which has an album listed here: Mostrati. e.s.t were renowned for their vibrant style - playing in rock venues to young crowds. They achieved great commercial success and critical acclaim throughout Europe.