track-listing credits band teufel − vocals koll a. − bagpipes , flute ( shawm ) castus − backing vocals , violin ( hurdy gurdy ) , bagpipes , flute ( shawm ) wim − bagpipes , flute ( shawm ) brandan − bass , bagpipes other assistant producer - chris gardiner programmed by tec ( 4 ) music and lyrics composed and written by tanzwut ( tracks : 1 to 7 , 9 to 11 ) .