The design I have chosen from my 18 sketches to bring to fruition in SketchUp Make is on the bottom half of the page. It incorporates the use of cones, both upright and inverted.
Above ground: Serenade
Below ground: Orbit
Each space, including the two workshops and the exhibition level, is round and revolves about a central stairwell. I chose a spiral staircase built into the granite cone which orbits about the section's axis of symmetry, very much like sand in the bottom of an hourglass as it makes a minute whirlpool.
The exhibition space is decked out with lavish floorboards and a thick glass viewing platform where incoming displays can be seen as they are brought up from the workshop below. A complete circumnavigation of the internal stairwell brings the visitor to the slightly inclined ramp with glass barricades which leads up to the storeroom on the top level.
Above ground, the design is widened at the top to mimic a gramophone or the bell of a musical instrument releasing sound into the surroundings.