'You've got a CD but it's very hard promoting it. You're offered the chance to sing it and represent your country at the Eurovision Song Contest. It will get some air time for your single, but will it compromise your musical integrity?'
The suggestion here is that by involving your music with the blatantly commercial ethos of the Eurovision Song Contest, it will increase the amount of radio play (air time) that it gets, but may damage your standing as a serious artist.
not a teacher