[3] Remnant ejecta blankets around parts of the Beethoven are subdued in appearance and their margins poorly defined in places.

The crater wall (rim) of Beethoven is buried by its ejecta blanket and by plains materials and is barely visible.

[4] Spudis and Prosser[5] have suggested that Beethoven may possibly be late c3 in age or as old as early c2, which means that it is older than the Caloris Basin.

[6] The depth of Beethoven is estimated to be 2.5 ± 0.7 km from the stereo derived digital elevation models based on Mariner 10 images of the planet.

This is significantly less than the depth of lunar basins of the similar size indicating that Beethoven probably has relaxed from its post impact shape.