• Duration: 12'
• Instrumentation: 2 cori ragazzi(e)-6000-4440-batt (6esec) cel ar pf-archi (min.12. min.12.6.6.6)
• Year: 1971
• Language of edition: pol
• Type: parts, score

''Upstairs-Downstairs'' is one of Wojciech Kilars last avant-garde works, which, as the composer has often stressed, was already announcing new tendencies and the upcoming breakthrough. It meant ''going beyond sonorism toward a new synthesis combining the harmony of tonal clusters with the tonal core of the form '' (Leszek Polony, Żywioł i modlitwa).