The venue itself was good but I’ll f, like us, you used google maps to navigate you there by foot, beware that only one of the 2 alternatives takes you to the right part of the castle. Also, there was a no obvious signage to the concert entrance, which wasted more time! You have to join a queue for a security bag check before you reach the venue and then don’t have priority over others who are buying general museum tickets. For all of these reasons, we ended up being quite late and then had to wait for a suitable break in the performance before we could be admitted to the hall. We also didn’t have a program but luckily knew the pieces that were being played.