"Play me your music – said Ravi Coltrane years ago, to the Polish participants of the SIM workshop. What does "your music” mean? Is it the music you love, the music desire to play, the one you study thoroughly or the one you've been listening to as a child and it awakened your imagination for the first time? Or perhaps, the one considered our roots music for historical and traditional reasons? How can we meet the criterion of "ourness” and how can we determine which music is more „our” than othe…