What key details about blackmail -lrb- band -rrb-  can be extracted from the following bio?  Bio: blackmail is a german alternative rock band from koblenz , germany which was started briefly in 1993 . blackmail are singer mathias reetz , brothers kurt ebelhäuser -lrb- lead guitars -rrb- and carlos ebelhäuser -lrb- bass -rrb- and drummer mario matthias . their style of music usually varies , but mainly consists of the indie rock genre which is combined with experimentation of electronic music , progressive rock , alternative rock and dance . it is also known for its harsh and high-pitched guitar melodies .
- years active is 1993 -- present- past members is aydo abay- caption is kurt carlos ebelhäuser -lrb- 2011 -rrb- ebelhäuser , mario matthias , mathias reetz ,- origin is koblenz , germany- label is blunoise 45 , speicherstadt , wea , city slang ,- genre is alternative electronic rock , indie rock , progressive rock ,- name is blackmail- background is group_or_band- image is img_0070bbmail . jpg- current members is kurt ebelhäuser carlos ebelhäuser mario matthias mathias reetz