There are three artists on this page. (1) E.S.T. is a Russian heavy metal band, aka Electro Shock Therapy. (2) E.S.T. is a UK drum & bass on Hospital Records (3) E.S.T. is short for Esbjörn Svensson Trio, a Scandinavian jazz trio. (3) Pianist and composer Esbjörn Svensson looms among the most influential and innovative figures in contemporary jazz, drawing on inspirations spanning from Baroque to techno to create a body of work that earned both commercial and critical approval.