Thanks a lot for your help. The expression "house of the muses" will be engraved in stone in a small performing arts building. Could it be in capital letters? Would it be: ΜΟΥΣΩΝ ΟIΚΟΣ ? What do I do with the accents? Can I avoid them?
A second question: could you indicate the exact pronunciation of both ΜΟΥΣΩΝ ΟIΚΟΣ and ΜΟΥΣΕΙΟΝ? I would especially need clarification on which are the stressed syllables. I appreciate your help. I am from Argentina, where the building in question is being built, and English is not my first language.