A rather beautiful classical Chinese compound for your Easterly enjoyment:
琴瑟 qínsè zither + zither (well, different kinds of zither, with the 瑟 sè "A more robust and serious instrument"). Metaphorically used to express close friendship.
Source: Entry for 瑟 sè in Kroll, Paul W. (2017). A Student's Dictionary of Classical and Medieval Chinese. Rev. edition. Leiden: Brill.