Sébastian Beliah invited to the project two improvisers of the jazz scene – they are Pierre Borel (saxophone) and Louis Laurain (trumpet), as well as singer and barabanist Olga Kozieł. The band creates a thoughtful combination of jazz and Polish, rural dance music. Lumpeks is the winner of the New Tradition - Polish Folk Festival from 2019.
- Louis Laurain – trumpet
- Pierre Borel – saxophone
- Olga Kozieł – voice, baraban, drum
- Sébastian Beliah – kontrabas