This is a reply to an old message.  deryk barker ([log in to unmask],
http://www.camosun.bc.ca/~dbarker) replies to me:

>>Beethoven used four notes in the last movement in a similar way that Mozart
>>used four notes as a basis for intensely complex counterpoint in the 41st.

>[...] while it's true that he used a four note phrase in the
>finale, he had already used the same four notes similarly in the "Eroica"
>Variations which were also based on the theme from Prometheus.  ...

I would like to suggest a fun little exercise:  simultaneously play the
4-note theme from the Eroica finale and the 4-note theme from the finale
of the Jupiter Symphony (transposing one so they're both in the same key,
of course).  You might be surprised.

Mike