25.09.2021, Tract-act, topody for contrabass flute, contrabass clarinet, bass saxophone and orchestra in spatial placement was premiered in shortened version during the final concert of 64th Warsaw Autumn International Contemporary Music Festival. This is the second and the main of the two pieces commissioned for this edition of the Festival.

The piece was performed by: Renata Guzik – contrabass flute, Michał Górczyński – contrabass clarinet, Bartłomiej Duś – bass saxophone, Warsaw National Philharmonic Orchestra conducted by Robertas Servenikas.

the sound projection of amplificated solo parts was performed by prof. Barbara Okoń-Makowska and Michał Bereza.