sentences:  He wrote "both Jacobsen and Weaver ... in letting participants select their own tempo found the opposite effect of notational complexity".On balance, it appears likely that under controlled temporal conditions, denser and more complex music is associated with a higher number of fixations, of shorter mean duration.This might be explained as an attempt by the music-reading process to provide more frequent 'refreshment' of the material being held in working memory, and may compensate for the need to hold more information in working memory.