Pallas When you say polyphony, are you referring to multiple voices in counterpoint?
Yes, but in this case, it is just a second voice that sometimes plays a little melody.
For instance, here in m15-17, LH plays not just the accompaniment, but it plays a little melody of its own. This is an example of what I call for "just a bit polyphonic". If you look at the melody in m13, there are five quarter notes in a first up then down pattern (F G A G F). Then look at the accompaniment in m 15, starting with the second note, there is the same pattern but upside down (B A G A B). It is this kind of finesses that I am very much in love with.
Nightowl We are in synch - I'm also working on Memory, from the Alfred's Hits book.
Yes, that is the one!
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... feeling like the pianist on the Titanic ...