1991 – 1993
- Collaboration with Music-Theatre Motz-Bretholt (Berlin) – music and traditions of Ashkenazi Jewish culture.
- Denmark / Music for the performance “De Fremmede” / Nakskov Teater (dir. Poul Trier Pedersen).
1992 – 1995
- BRACTWO UBOGICH – co-founder, organizer, and musician of the ensemble/project; one of the pioneering Polish groups working with indigenous traditional culture “in crudo.” The ensemble collected musical material, songs, dances, and knowledge of folk traditions directly from rural communities and used this material for presentations and concerts without stage adaptation.
- Ethnomusic expeditions: Polish villages; Ireland, Wales, France, the Czech Republic, Hungary, Lithuania.
1993
- Szamocin / Teatr 44 / dir. Luba Zarembińska; co-direction: François Monnet, Jacek Hałas; music: Jacek Hałas, Gigi Liberti.
1994
- Szamocin / Teatr 44 / Ernst Toller – The Long Street of the Dead / dir. Luba Zarembińska / music: Jacek Hałas / Stacja Szamocin.
1995
- Carol Singing (1995–96) – international Roztocze project (participants: Vonette, François, Laila Monnet – FR / Gitte, Lotte, Miriam Kielberg, Ann-Mai-Britt, Henrik, Ruben Bredholt – DK / Mira, Darek, Franek Korbańscy / Beata Wilgosiewicz, Agnieszka Berger, Dorota, Piotr Grochowscy / Jacek, Alicja Hałas – PL).
