I used to love hearing the late great Hugh Maguire leading the Allegri quartet in the Quartettsatz of Schubert. It’s the first movement of an unfinished quartet—and if you ask me (as you don’t), it deserves to be a lot better known than the symphony (for which, see Alan Bennett, and the classic Kronenburg ad).
Anyway, I digress, as usual. You can (or could) hear the Chilingirian quartet playing it in Classic quartets at the BBC. This fine performance by the Jasper quartet, from 2009, seems prophetic in its isolation:
On and off, the beguiling little ppp sequence from 2.06 has been an earworm for me over fifty years. Schubert manages to restrain himself (he may just have wanted to get down the pub, as in the Kronenburg ad), but in my head I often find myself taking the sequence on and on [Weirdo—Ed.], imagining playing it on the violin (though it’s just as fun in the lower parts)—it only takes six phases to get back where you started. But OK, probably just as well that Schubert resisted the temptation…
In a typical segue, I recommend playing this game with pop songs too, like the “I love you baby” refrain of Can’t take my eyes off you (which, like Schubert, knows when to stop). And since jazzers are the True Masters of harmony, here’s Coltrane‘s Giant steps (fast-moving chord sequences shown to your left; for analysis, see e.g. here):
And then there’s the enchanting The windmills of your mind, crafted by varying a single motif.
Of course (my usual reminder!), efficacity doesn’t depend on complexity; in art, folk, and popular genres, pieces can communicate without harmony or modulation…
More Schubert here!