In the early days of his metalwork, Lin tried an iron bell as his subject. Contending is set outdoors and relies on the wind to move a series of metal wires which swing in the breeze and strike the bell. The movement of different combinations of wires produces different sounds, revealing a surprising interest in the (to Lin) foreign concept of sound.
創作鐵雕初期，林良材嘗試以鐵鈴為主體，《爭鳴》一作是戶外裝置作品，靠著風力，讓響鈴四周的金屬物自然擺動敲擊響鈴，從鐵絲的線性關係中，創造出不同鈴聲，充分流露他對聲音的想像。