Assalamu Alaikum Wa Rehmatullah.
With regards to music, a comprehensive response by MI. Ismail Moosa approved by Mufti Ebrahim Desai has already been issued at askimam.com (the older version of the website). However, since the transition to the new website, I fail to find the detailed fatwa hence couldn't post the link. I have a copy of it saved. But I recently read the copyright thing at the bottom of the website. So I don't know whether it'll be permissible to quote his fatwa else where or not. If anyone like Mufti Abu Hajra or a reliable person from Mufti Sahab's Madrassah can state that is it permissible to quote their fatwas (general fatwas, regarding Shiítes, Music, Qadr etc) elsewhere then I'll post it.