Playing an instrument does not leave you with a product. It is not a transaction of your time that returns revenue directly, as it would if you were paid by the hour. Since one can't be paid until one has practiced, the motivation cannot be about money. When you practice, you don't walk away and feel better in a new dress, as you may after working out, and you may not be better at public speaking, as you would be after a speech class. If you don't find a way to enjoy the ac