Complex sentence: His music was described as a "daring and bizarre" by some Australian critics, others characterized his pieces to be "a scrambled compendium of noises, some born of musical instrument," and "produced by all manner involving childish fun".
Split into simpler sentences: His music was described as a "daring and bizarre" by some Australian critics. Other critics described his pieces to be "a scrambled compendium of noises, some born of musical instrument," and "produced by all manner involving childish fun".