Potty sewage workers are playing Mozart to human waste in a bid to make it easier to purify.

Owners reckon the process - where the sewage is blitzed with music by the classical composer over a powerful hi-fi - will save them up to 1,000 GBP a month.

Scientists say the unique rhythmic profile of Mozart's music combined with a high dose of oxygen stimulates microbes to break down the waste more quickly at the plant in Treuenbrietzen, Germany.