Drum-Gate (2016)
PDF

...

Material: steel, rubber membranes, valve block
Weight: ?
Dimensions: length 400cm [13.1 ft] x height 350cm [=11.5 ft]

Hammerwerk (2014)
PDF

Hammerwerk consists of four air drums woth eight pneumatically powered hammers for which the stretched membranes of kevlar -a synthetic fiber of high tensile strength- over a circular mounting with an internal diameter of 1.50 meters. Attached to each drum are sixteen hammers each of which are fitted with a pneumatically operated rotational joint the heads of which covered with various materials, strike the membrane. The flaming orange color of the membranes with their small insectile hammer arms gives Hammerwork, especially when in movement, the appearance of a delicate, organic being.

Material: steel sheets, pneumatic swivel drives, valve islands, control
Weight: 55 kg
Dimensions: height 220cm [=7.2 ft] x width 150cm [=4.9 ft]

Klöpper (2014)
PDF

...

Material:
Weight: 110 kg
Dimensions: width 150cm [=4.9 ft] x height 200cm [= 6.6 ft]

M-Pipes (2010)
PDF

Specially built nozzles enhance the blow noises of the air stream, the tone appears rough. Drainpipe tubing is mounted to sixteen valves, the controllable air stream generates strong sounds.

Material: steel, pipes, 8 gas valves, 300 mBar blower
Weight: 145 kg
Dimensions: height 200cm [=6.6 ft] x length 200cm [=6.6 ft] x width 350cm [=11.5 ft]

Brane (2010)
PDF

Each Brane consists of a membrane, which is vibrated bij an air stream movingover a circular mounting. Brane's acoustic color and pitch level is determined by the sounds occurring at the end of a tube. Schläger bundled sixteen Branes and mounted them - similar to Kulong and Typedrum - on a ring at a height of 3.40 meters.

Material: steel profiles, rubber membranes, valve block
Weight: 120 kg
Dimensions: length 460cm [15.1 ft] x height 340cm [=11.2 ft]

Kulong (2009)
PDF

32 Typewriter magnets strike custom-made oval metal cylinders. There are two versions: One tuned B gate consisted of a Typedrum to F#, one tuned G to D.

Material: 32 magnets, steel
Weight: 50 kg
Dimensions: height 300cm [=9.8 ft] x length 380cm [=12.5 ft] x width 80cm [=2.6 ft]

Typedrum (2009)
PDF

The clattering backdrop of electric daisy wheel typewriters has become an acoustic museum’s rarity. This particular sound environment was revived here. For Typedrum small level arms strike membranes of print foil mounted on round tires.

Material: 16 magnets, metal, foil
Weight: 40 kg
Dimensions: height 300cm [=9.8 ft] x length 380cm [=12.5 ft] x width 80cm [=2.6 ft]

Brauser (2004)
PDF

Motors are mounted on perforated synthetic foil stretched over eight three-meter-plus high poles. When the motors are activated they cause the foil to rapidly rotate which generates a robust, clamorous sound. The eight poles stand on a carrier and the foil, which is red, makes them appear like long-stemmed plants in a vase.

Material: steel rods, 8 motors, foils
Weight: 20 kg
Dimensions: length 160cm [5.2 ft] x height 330cm [=10.8 ft]

Chromix (2001)
PDF

The mechanical principle: Magnetic generators let V2-A metal sheets resonate. Chromix exists in four executions. Sound is produced by means of magnets that stimulate the steel sheets’ intrinsic resonances. The metallic sound produced varies between made by a transformer and that made by a thunder sheet.

Material: 32 magnets, stainless steel-chrome sheets, metal
Weight: 60 kg
Dimensions: length 760cm [=24.6 ft] x height 330cm [=10.8 ft]

Schwirrer (2000)
PDF

Schwirrer, built in 2000, is based on a principle similar to that of an organ or flute in which a column of air is caused to vibrate when air is forced into a tube. The parallel fluting within the tube generates standing waves of air similar to the aquatic action in a small brook where extending from the banks crosswise overlapping waves are formed on the surface of the water.

Material: steel, cable conduits and pipe bends, 8 sewing machine motors
Weight: each instrument 80 kg
Dimensions: height 350cm [=11.5 ft] x length 700cm [=23.0 ft]

Telewald (1999 / 2013)
PDF

72 telephone bells have been mounted on a slightly concave carrier of 3.10 meters in height and are struck by magnets. In addition to these standard telephone bells, the artist also uses prepared bells in the form of flat metal discs, which produce a rattling sound.

Material: steel profiles, 576 bells
Weight: each object 15 kg
Dimensions: height 310cm [=10.2 ft] x length 45cm [=1.5 ft]

Zirr (1998)
PDF

Sound principle is the deep droning and highfrequent vibrating of circular metal sheets. Eight electro magnets vibrate horizontally arranged stainless steel sheets.

Material: 6 swinging magnets, steel, V2A-sheets
Weight: 40 kg
Dimensions: length 150cm [=4.9 ft] x height 140cm [=4.6 ft]

Whupi (1998)
PDF

Metal membranes in small metal boxes are vibrated. On the arms, which can have a span of up to 16 meters [=52.5 ft], sound moves up through the space.

Material: 64 boxes, steel pipe, metal sheets, flexible tubes
Weight: 60 kg
Dimensions: length 1600cm [=52.5 ft] x height 40cm [=13.1 ft]

Wopper (1996 / 2013)
PDF

Roaring deep Wopp sounds are generated through sudden interruption of the air stream. The last version of the Wopper emerged uite late in 2014.

Material: 8 valves, steel, synthetic water pipe or conical led pipe
Weight: 25 kg
Dimensions: length 300cm [=9.8 ft] x height 140cm [=4.6 ft]

Flatterbaum (1994)
PDF

Record player motors rotate vinyl discs or other materials generating whooshing and roaring sounds.

Material: 3 rods with a total of 24 motors: wind sauser, rill sauser, paper sauser, steel, foils
Weight: 60 kg
Dimensions: height 320cm [=10.5 ft] x width 210cm [=6.9 ft]

Standzeit (1994)
PDF

The mechanical principle of sound generation. Disassembled bell magnets strike steel spring rods.

Material: 32 bells, metal pyramid, spring rods
Weight: 29 kg
Dimensions: heigth 250cm [=8.2 ft] x width 100cm [=3.3 ft]

Federine (1994)
PDF

A steel pyramid serves as the platform for Federine. Its construction was inspired by the droning and groaning noises of the springs of a garage door. Vibration of similar springs is activated by seven drills set in motion by motors. Schläger furthermore mounted poles and wires to the pyramid which are struck by 25 magnets from spinning machines.

Material: 25 magnets from spinning machines, 7 motors, steel, garage door springs
Weight: 110 kg
Dimensions: height 257cm [=8.4 ft] x width 130cm [=4.2 ft]

Schellenbaum (1994)
PDF

Twenty-eight modified doorbells are fastened to a column of copper sheet. Bell magnets strike steel and brass bells. The brass bells enrich the sound, which occasionally is reminiscent of bicycle bells, leading to the later variant Telewald.

Material: copper sheet, 28 doorbells, 2 bell magnets
Weight: 17 kg
Dimensions: heigth 200cm [=6.6 ft] x width 60cm [=2.0 ft]

Knister (1993)
PDF

60 motors cause plastic wrapping and papers to rotate generating whooshing and crackling sounds.

Material: 60 motors, metal, foil
Weight: 15 kg
Dimensions: heigth 180cm [=5.9 ft] x width 25cm [=0.8 ft]

Knackdosen (1993)
PDF

Connected by a cable electromagnetic signal generators are mounted at intervals of 0.5 meters. Close-circuited, they generate a cracking sound. The 32 meter long cable of the Crackboxes chain can be arranged in various ways. Schläger places the chain either inconspicuously in the room or he constructs with them objects on carriers.

Material: transducer, signal source, cable
Weight: 15 kg
Dimensions: length 3200cm [=105 ft]

Hopper (1993)
PDF

Hammerwerk consists of four air drums woth eight pneumatically powered hammers for which the stretched membranes of kevlar -a synthetic fiber of high tensile strength- over a circular mounting with an internal diameter of 1.5 meter. Attached to each drum are sixteen hammers each of which are fitted with a pneumatically operated rotational joint the heads of which covered with various materials, strike the membrane.

Material: steel sheets, pneumatic swivel drives, valve islands, control
Weight: 55 kg
Dimensions: height 220cm [=7.2 ft] x weight 150cm [=4.9 ft]

Sirenen (1989)
PDF

Air passing through rapidly rotating perforated discs produces a characteristic siren sound. The siren consists of eight discs, which can be triggered by eight throttle flaps and 16 motors. Wind machine blowing air into the valve box. The valves distribute the air to the eight hoses.

Material: steel, tubes, 8 hoses, 8 valves, 8 throttles, 16 motors
Weight: 140 kg
Dimensions: height 240cm [=7.9 ft] x width 350cm [=11.5 ft]

Klapperrappel (1987)
PDF

Elliptically cut metal cones colliding in pairs, including small amounts of air in the process. Seven pulling magnets from a former pneumatic dispatch that have received a new function.

Material: 7 pulling magnets, steel
Weight: 36 kg
Dimensions: height 240cm [=94.5 in.] x width 80cm [=31.5 in.]

Klangmaschine (1984)
PDF

The first sound machine was constructed over thirty years ago. It consisted of three elements: The sound sculptures named Klangmuschel (Sound Shell), Gewittersäule (Thunderstorm Column), and Sirene. All have mechanical sounders and can be activated directly by switches and regulators. The Sound Shell has a rotating disc with a scratcher, a rotating ring consisting of springs, a hammer, sounders, magnet horn, and drilling motor. The Thunderstorm Column has rotating chains on two garage gate springs, a metal rod carousel, a buzzer, and a beater. Sirene consists of a wind machine and three perforated disc motors.

Material: metal bodies, motors, blowing machines, switches, controls
Weight: 150 kg
Dimensions: Sirene 140cm [=55.1 in.], Sound Shell 120cm [=47.2 in.], Thunder Storm Column 250cm [=98.4 in.], control panel 90cm [=35.4 in.]

Selektor (2004)
PDF

...

Material:
Weight: 6 kg
Dimensions: height 80cm

Injektor (2016)
PDF

...

Material: pipes, injektoren
Weight:
Dimensions: height 150cm [=4.9 ft] x width 250cm [=8.2 ft]

E-Bell (2014)
PDF

...

Material: steel, magnets
Weight: ?
Dimensions: height 220cm [=7.2 feet]

Motorchord (2012)
PDF

...

Material: steel, motors
Weight:
Dimensions: height 80cm [=2.6 ft] x width 400cm [=13.1 ft]

Format (2001)
PDF

Motors rotate brass discs.

Material: 8 motors, iron pipes, brass discs
Weight: 40 kg
Dimensions: height 140cm [=4.6 ft] x width 120cm [=3.9 ft] x length 110cm [=3.6 ft]

Quäker (1994)
PDF

Air directed through eight valves blows through a rubber strip, which is extended between two wooden beams. The tension can be changed and an animal-like sound resonates. During concert the tension of the “vocal cords” can be increased directly by means of the use of bicycle brake levers.

Material: steel and 8 air valves
Weight: 50 kg
Dimensions: height 200cm [=6.6 ft] x width 65cm [=2.1 ft]

Rauscher (1994)
PDF

Rustling, hissing sounds through pure airflow and short air blasts. Bells are connected to eight suction valves through which wind flows from a wind machine.

Material: steel, conical tubes, suction valves
Weight: 45 kg
Dimensions: height 200cm [=6.6 ft] x width 65cm [=2.1 ft]

Riller (1994)
PDF

...

Material: steel, tubes
Weight: 45 kg
Dimensions: height 210cm [=6.9 ft] x width 85cm [=2.8 ft]