What a wonderful museum. Address is key to finding this very humble and humbling museum. All the volunteers working here can explain all you want to know about differing Chinese art forms. Very welcoming staff even though we arrived at lunch and they were "closed". They opened up for our tiny group of three. Hands-on and fun calligraphy lesson after our informative tour.
Yeah, I failed my penmanship class here but learned the characters for my name which I then took home. We purchased a group of "four season" paintings done by nearby art students. Bargain if you want on the posted prices or simply treat as a small donation to keep this Fantastic museum open and running.
After your other, likely a wee bit crowded experiences in the Middle Kingdom, please make time during your visit to Xi'an to better understand why this city was the center of the known universe for thousands of years. You will be quite glad you took the time. The other reviewers expressed their sentiments much better than I can. Please read their reviews to get a better feel of this magical place.