"Music room" can be translated into Engpsh as "Music room". It refers to a room specifically designated for music related activities, such as practicing, composing, or teaching.
Example sentences in Engpsh with Chinese translation:
The music room is equipped with pianos and other musical instruments. (音乐教室配备了钢琴和其他音乐乐器。)
The music room is available for students to use during school hours. (音乐教室在学校开放时间供学生使用。)
I love to spend my free time in the music room, practicing on the guitar. (我喜欢在音乐教室度过我的空闲时间，练习吉他。)