Addiction of anything is wrong and abnormal. if someone is addicted to even Quran that they dont fulfill rights of their parents, ignore salah, ignore human relationships, then that is abnormal as well.
Even the recitation of Quran is music. We are creating rhythm and intonation via vocal cords, larynx, tongue, lips when we recite Quran in a beautiful way. Music itself is not haram. Musical instruments are nothing but replacement of human vocal cords, tongue and lips with strings and keys and holes.
Dont get me wrong, I am open minded. Show me a clear cut proof from Quran and hadith which single handedly prohibits ALL types of music and musical instruments in ANY circumstances, I'd accept the command of Allah, inshAllah. I want this proof to be as clear as the proof against zina, against shirk and against other evils which are so clearly illustrated in Quran and hadith.