Midi, PDF, and interactive guitar pro (GPX) versions of seven popular Chopin tunes:
1. Black Keys Etude
2. Fantaisie-Impromptu
3. Grande Valse Brillante
4. Prelude, Opus 28 No. 5
5. Valse in B Minor, Op. 69 No. 2
6. Valse No. 7 in C# Minor, Op 64 No. 2
7. Waltz in Db Major, Minute Waltz

The MIDI files also come with accompanying AIF audio files. This is not an actual piano performance, merely the midi file of the transcription, played through a DAW.

GPX Files are designed for use in Guitar Pro version 6 or higher. Guitar Pro is a transcribing software that allows for easy playback of tunes, the ability to manipulate the transcription, and even practice with the sheet music in time. It’s also much faster and more affordable than many other transcription softwares on the market.
Guitar Pro also has a feature that allows students to highlight bars that they need to practice, while selecting a feature that plays the measure over and over from slow tempo, to normal speed. It will loop the file, gradually building the speed until it is playing to tempo.

Guitar Pro offers a free trial period, but if you don’t want to download it you may be able to import the GPX’s into soundslice for free. I cannot guarantee that the files will be as polished, but it should work relatively well for basic playback.