A good exposition, starting from the physics of sound, how to feel and see it, to thematic rooms dedicated to the great composers who lived in Vienna. It's fun for children to create a couple of their own clongs- visual images of musical forms
We went without a guide, but it was still interesting. He conducted the Vienna Orchestra. The first time they sent me away, but the second time they relented. There are many other interactive attractions and exhibits. I recommend visiting both adults and children.