Although I missed tones...
the 3rd of No. 13 (pathetique)
Do Fa ♭Si ♭Mi♭La ♭Re Do ♭Si ♭La So
the 3rd of No. 31
La Re Si Mi Do Fa Mi Re Do
At the first time I met this work, I was so impressed.
Recently I practiced it and other sonatas, I found the above. It was not the first time at all. I had met it, a close motif, before.
If my electric piano could sound more in particular the last part.