An acoustic sculpture 10 having a main frame structure 12 including an upper support member 14 and a lower support member 16, and a plurality of tube assemblies 24 of varied mass. A tube assembly 24 includes a vertical chime tube 20 acoustically suspended from a coaxial mounting rod 28 mounted to a tube frame. The tube frame can include transverse straps (30, 32) mounted to vertical stiles (34, 34') which are attached to the upper and lower members (14, 16). A striker assembly (48, 48') is attached to the tube frame, for example, the stile portion (34,34'; 34'',34'''), and includes a housing (60, 60') and an actuator button (50, 50'), accessible through a first aperture (64, 64'), operatively connected to transmit motion to a hammer head (54, 54') to strike a chime tube (20, 20') through a second aperture (65, 65') in the back plate (63, 63').