tremolo 79 Hz 2004 | Art-Nouveau Concert Hall in Landau/ Pfalz (Germany)
Fig. 1-4: tremolo 79 Hz | African gabbro | rope-sawn and grinded | 62 x 124 x 405 cm | Photography: Martin Albrecht †
Fig. 5: tremolo 47 Hz 2008 | African Gabbro | limited edition 2 pieces | 46 x 23 x 124 cm | private collections in Spain and Switzerland | /sculpture/room-sculptures/tremolo-47-hz-2008