The composition is considered to be a bagatelle, a piece that is “usually short and somewhat whimsical in nature.” You can read about the composition at another tab on that link. It may be whimsical and short, but there is a profundity to it. The key of A minor certainly helps, but I think the recurring moments where a single note is repeated suggests a moment of soul searching. As the site says the piece is in the form of a rondo, a recurring melody. Here the form is ABACA, “A” being the recurring home theme. The “B” and “C” contrasting themes suggest an attempt to break out of this melancholy mood. “B” theme I think starts at 1:06 in this video and “C” about a minute later. I can’t quite reach a conclusion to how the piece ends. Does the mood shift in the last play of the home theme, and therefore come to some sort of resolution, or does the piece end on the same dispirited mood? I can almost hear both. What do people think?
No one creates tension like Beethoven! I don’t know Tzvi Erez, but he plays this beautifully. I sampled a few videos and I really think his was the best. You can read about him here.