Yes it's my main music listener , was not until I got good set of head phones, Skull candy with bass boost, and a decent set of Sony extended bass buds
Yes, all the time. I purchased a pair of Sony over the ear noise canceling headphones. With good drivers the iPad is a great music machine (provided you've got high quality versions of your music)
In fact I'm listening to Captain Fantastic and the Brown Dirt Cowboy right now
No, but I use my iPhone to listen to music on iHeart radio; because it fits in my front shirt pocket and I don't have to carry it around in my one good hand/arm.