A team of researchers at Hebrew University in Israel tested the language abilities and basic auditory perception of 52 dyslexic musicians.
What did they find? On most tests of auditory perception, the dyslexic musicians scored as well as their non-dyslexic counterparts, and better than the general population. Where they performed much worse was on tests of auditory working memory, the ability to keep a sound in mind for a short time (typically seconds). In fact, the dyslexic musicians with the poorest working memory tended to have the lowest reading accuracy. Those with better working memory tended to be more accurate.