Here is a puzzle, involving a short piece by Chopin: Etude No. 3 in E [major] (Op. 10)
realized by Katsuhiro Oguri.
(For this, it is essential to use good wave-table MIDI synthesizer software like the Microsoft GS Wavetable SW Synth (which is based on Roland wavetables). The Creative (SoundBlaster) SoundFont Synth and the QuickTime Music Synthesizer (at least on PC's) somehow blot out temperaments' emotional content, and thus they make meaningless this listening comparison.)
Etude No. 3, but different
The first was better, right? but just how is it different? That is your problem to solve, ladies and gentlemen!
Especially note the chromatic passage, starting at 1:50.
How is it different? In other words, what makes it better?
You will see the answer in a forthcoming post!
If you still cannot put your finger on it, here is another piece:
Impromptu in Gb [major] (Op. 51)
realized by Robert Finley.
Impromptu in Gb, but different
Especially note the passage (in Bb minor, I think), from 2:11 through 3:26.
(Thanks to the The Classical MIDI Collection for the original Chopin MIDI's.)
Copyright (c) 2010 Mark D. Blackwell.