Sounds like a great oppertunity to have a dedicated music room. The treatments and speaker placement will be the key to success.
Would this room work?
My wife is falling in love with a house that has a room over the garage 13 feet by 17 feet, ceiling height 8 feet at peak with sloped side walls to 4 foot wide peak which runs lengthwise. This room could be a dedicated listening room with any room treatments I desired. Does anyone have such a room and does it work well? Issues and challenges?