Nostalgia is a work for Guitar, Oboe and 2 Flutes. It is not so much a set of variations, but a set of rearrangements of a simple theme suggesting a Western influence.
You can download this score or the midi and mp3 versions using the links in the left-hand menu.
The audio controls below allow you to play the mp3 version of Nostalgia by Jim Paterson or you can download the MP3 file. You can also download the midi version of Nostalgia by Jim Paterson or alternatively edit/play the midi file.
The image below is the first page of the sheet music, and here you can download the full sheet music for Nostalgia by Jim Paterson in PDF format.