Lynn TaitLynn Taitt remakes the "Batman" movie theme song in a killer Rocksteady style. Those cheerful instrumentals, which well represent the distinctive sound of the Merritone label, were originally released in 1968. Lynn Taitt remakes the "Batman" movie theme song in a killer Rocksteady style. Those cheerful instrumentals, which well represent the distinctive sound of the Merritone label, were originally released in 1968. t remakes the "Batman" movie theme song in a killer Rocksteady style. Those cheerful instrumentals, which well represent the distinctive sound of the Merritone label, were originally released in 1968.