Definition: Compose a new way to ask the same question. The new question must be asking the exact same thing as the original question does. Without any other information, you should be able to tell that the original question and the new question are the same. Preserve bracketed phrases in your new question. You can change the rest of the question provided the above requirements are satisfied. The new question must have a natural, fluent formulation, as if it were composed by a native English speaker. You will be given three pieces of information to help you create better questions. Those are: "Answer": the answer to the question, e.g., "Honolulu". "Answer Type": the type of the answer, e.g., "Location". "Auxiliary Information" is a detailed description of some concepts mentioned in the question, if any.
Input: original question: Which musical soundtrack has the album content type of [Soundtrack] and is an album of [Rock music]?
answer: highlights from jesus christ superstar (1996 london studio cast), hair: the american tribal love-rock musical, grease: the new broadway cast recording...
answer type: Musical Soundtrack.
auxiliary information: A soundtrack, also written sound track, can be recorded music accompanying and synchronized to the images of a motion picture, book, television program or video game; a commercially released soundtrack album of music as featured in the soundtrack of a film or TV show; or the physical area of a film that contains the synchronized recorded sound.Rock music:;Type: Musical genre. ;

Which musical [Soundtrack] is a [Rock music] album?