A good question. What makes a music sound synthetic or natural ? It is essentially irregularities in tempo and dynamics. A music with constant, imperturbable speed where all notes have exactly the same length and loudness sounds utterly mechanical. Of course, the difference is more audible, I would even say spectacular, with Chopin or Schumann than with Bach or Vivaldi, but even those should not be played like a clockwork.
I have thus selected in my collection of classical MIDI files a few that sound natural. Most of them have been recorded "live" on an electronic piano, the sequencer playing the piece on the keyboard without a fixed measure. You see the details only when you open the MIDI file. But you don't need to open them, really. Just enjoy...
The creator of the MIDI file (or "sequencer") is shown in grey italics.
The pieces with a green bead can be downloaded, Click the bead.
|Italienisches Konzert (First movement) (44 kB) Unknown|
|Toccata from BWV 830 (57 kB) Carlson
Partita N°6 in e minor.
|Toccata BWV 911 (56 kB) Frank Dupree
Toccata in C minor. This file was recorded in a 2014 competition.
|Fugue from BWV 992 (12 kB) Abrams
From the "Capriccio sopra la lontanezza del suo fratello dilettissimo"
|Gigue from BWV 808 (13 kB) Siu
Last movement from the English Suite N°3
|Romance Op.50 (31 kB) Moclin|
|Rondo a capriccio Op.129 (39 kB) Giulimondi
Capriccio über "Der verlorene Groschen"
|Valse posthume en mi mineur (13 kB) Valérie Tryon|
|Mazurka Op.67 N°4 (12 kB) Don Lubetsky
|Valse 3 Op.34 N°2 (28 kB) Moclin|
|Prélude Op.28 N°15 (12 kB) Unknown
|Nocturne N°1 (12 kB) Unknown
|Fantaisie-Impromptu (21 kB) Unknown
|Sonata in D major (152 kB !) Faren Raborn KV 284
|Sonata in A minor (24 kB) Katsuhiro Oguri KV 310
|Adagio in B minor (32 kB) T.L. Hubeart KV 540
|Moment musical Op.94 Nr.3 (8 kB) Roland Corp
Supplied with my synthesizer as a demonstration.
|Capricho árabe (36 kB) Tchiang
Capriccio for the guitar.