Portishead's 'Sour Times' helped define trip hop

Three singles were released from Portishead’s Dummy: ‘Numb’ (June 1994), ‘Sour Times’ (August 1994), and ‘Glory Box’ (September 1994). ‘Sour Times’ became the most successful single, featuring a sample from Lalo Schifrin’s ‘Danube Incident’ and helping to define the trip hop sound.