Vienna isn't a city drowned out by or associated with by any particular musical genre. Perhaps that's why the Viennese duo of Stefan Jungmair ands Paul Schneider find it easy to make up their own rules.
Originally jazz musicians, an anarchic streak in their personalities sent them reeling in search of musical mayhem and adventure, ditching the stiff approach.
"The Szabotnik 15 Mission' is a mixed bag of heavily instrumental tracks, which fits neatly into the characteristically unclassifiable musical diction of many overseas jazz/funk/experimental outfits.
They skip irrationally between genres and vibes - it's virtually impossible to pin down a sound that is characteristically "Mum".
But that's what makes them tick. And after the success of their self-titled debut album of 2000, Mum re-emerge triumphant. A gleaming jewel in the metaphorical crown of Austria's Klein label.
Overhauls of traditional brassy sounds seem to be the order of the day. Like the electro angle on a jazz samba upbeat mover 'L'Energie Irradiat'.
Curtis Mayfield and Lalo Schifrin rear their beautiful heads in the likes of 'The Hallways Of Always'. And whilst Andrew Lloyd Webber gets his sticky and very sickly mitts all over the Bollywood scene and turns it in to a tasteless phenomenon, Mum do the sussed stuff. 'Sugriva, Leader of Monkey' hangs like a Nitin Sawhney tune with the distinctive tabla and gorgeous traditional vocal.
DJs should be happy with the selection too because the tempo shifts from chilled to a superb selection of funk based floor fillers that could make even the most diabolical of tune pickers appear cool.
The album title may be meaningless but the contents sure ain't.