Concerto grosso voor violen [2], altviool, cello en orkest, "Endorphin"

Concerto grosso for violins [2], viola, cello and orchestra, "Endorphin"

Concerto grosso für Violinen [2], Bratsche, Cello und Orchester, "Endorphin"

Concerto grosso pour violons [2], alto, violoncelle et orchestre, "Endorphin"