With all the exercises going into depth about the rhythm and count that is used to play the exercise/lick, do I have to play a certain lick on the count described? Like say the exercise was explained as starting on the 'and' of the second beat, do I have to play it on that same beat when I improvise. OR, does the talk about what count the lick/phrase is played on serve to help me hear the rhythm in my head and play it as fast and whenever I want in the bar, so long as I maintain the same rhythm. Which one is it? Any help? Thanks!