Transfer songs from iPod, iPod touch to iPad

Just got a new iPad and can't wait to transfer music from your iPod to iPad? If you have all your iPod songs in your iTunes, that would be pretty easy, just sync them to your iPad. However, you might want to transfer songs that are only available on your iPod, or copy some songs from your family or friends' iPod to your iPad. In these situations, you can achieve the task by copying your iPod...