Final answer:
Based on the information given, it is uncertain whether Leonard Bernstein and Gunther Schuller supported Coleman's music. However, classical composers like Berlioz, Strauss, and Wagner were known for pushing the boundaries of traditional music.
Step-by-step explanation:
True or False: Classical musicians Leonard Bernstein and Gunther Schuller did not support Coleman's music.
Based on the given information, it is difficult to determine Leonard Bernstein and Gunther Schuller's specific views on Coleman's music.
However, it is important to note that throughout history, many classical composers have been known to challenge the boundaries of acceptable music, pushing the boundaries of what was considered traditional or conventional.
Composers like Berlioz, Strauss, and Wagner were all considered progressives in their time, and their music often challenged the audiences of their day.