A work for four cellos based on J. S. Bach's Suite n.5 for solo cello. It is part of the 'Transformation' series that attempts to transport Bach's oeuvre into the modern era to convert Bach's writing into that of today. The work is composed of four successively played parts. Though the sonority is completely different each part is closely related to Suite n.5.Part 1 Densité (density): each semiquaver from the beginning of the prelude is extended to form dense chords.Part 2 Chant (song): a new melodic line emerges from different transpositions of the Sarabande's melodic lines.Part 3 Tempus fugit: fragments from the Courante pass quickly while the Gigue's basic rhythmis repeated relentlessly.Part 4 Dans le temps qui s'étire (as time stretches): the Fugue subject from the second half of the Prelude appears about ten times bringing various developments.