“…wie die Zeit vergeht…” (“how time flies”), 9 rational time-leaps at point 662/264 for piano and percussion quartet, 1993
Himbeerrot die Sonne steigt (“The sun rises raspberry-red”) for 2 soprano saxophones, clarinet, trombone, viola, double bass and piano 4-hands, 1991
Das Heu gärt (“The hay ferments”) for small group of improvisers, 1990
8 compositions for a full-length program on texts by Konrad Bayer, for Schlumpf’s own sextet “Die Vögel”, 1986: “herr je und we du liebe zeit” “plötzlich ging die sonne aus” “die vögel” “flötengong – alte wunde” “der kutscher sitzt auf dem tanzmeister” “er der tag” “mit einem schwert aus reinem crystall” “riegel mir den hals”
Five O’Clock Jump for 13 instruments, 1986
6 compositions for Schlumpf’s own 11-piece band, Swiss Fusion 84: Passagen Freischütz Ouverture Interruptus From Eriboll to Kirkiboll (after Ernst W. Heine) Rattaplasma – der serbische Olymp – Kokoskotten (on Dada texts)
Tenebrae for soprano, alto, baritone, mixed chorus, 5 brass instruments, harpsichord and string quintet (after Paul Celan), 1976-7
Evokationen (“Evocations”) for six brass instruments, piano and percussion, 1972