Sentence:  For radio-transmission it has been found that certain passages of a rhythmical nature come out more clearly if wooden-headed sticks are used. The Timpani sometimes tend to sound blurred and even to have a blurring effect on the rest of the orchestral ensemble in <WSD>broadcast</WSD> music, when ordinary soft sticks are used in a strongly marked rhythm. 
Meaning of the word marked with <WSD> tags:  Communicated, signalled, or transmitted through radio waves or electronic means.