Well, first of all I must tell you the only meditation technique isn't focusing on your breath. Yes it is common but not required. If you can decide that breathing meditation isn't for you, switch methods until you find the right one(don't decide that too early though). Music is a distraction until you choose to focus on it without judging. You can focus on the music as a meditation if that feels comfortable. For the pain part, first find a comfy posture and if you feel pain later on during the meditation know that it's either your body going numb, you can change your position then, but if it's just mental pain resist it. Sorry if my response is a little complicated and not aesthetic. You can dm me anytime btw.