Long, long time ago, I can still remember...my professor giving me this piano theme, by Bela Bartok:
Tema di Bela Bartok
It was the theme for the composition of 3 variazioni for piccola orchestra, over the theme, preparing the examination test.
Even if it's not my usual style, finding it in my files, I did the GPO rendition, to hear the sound of actual samples with my old composition.
I. Andante, 4/4 theme orchestrated.
II. Allegretto marziale, 2/4 variazione I (re-exposition of the theme, as a canon, with military march atmosphere)
III. Waltz, 3/4 variazione II (theme for moto contrario, as a dance)
IV. Presto, 7/8 variazione III (theme dissection, with counterpoint elaboration, floating over an ostinato, and little fugato conclusive coda)
Tre variazioni per piccola orchestra su un tema di Bela Bartok
It's a modest and short piece, but I find it still interesting.
If some student would like to discuss the form, I will be happy chatting about it.