This will not affect your music player. Just plug in your iPod or any music player into your computer and then go to
control panel > User Accounts > Select your account > Related Tasks > “Prevent a forgotten password”.

Now once this is done all you need to do is select your music player.Then enter your password and select finish and now each time you forget your password all you need to do is plug in your music player and then select "did you forget your password?" and your password will be entered. So this is it, no need to remember your password when you have your personal music player.