I own the original soundtrack which did not include the 3 new bonus tracks. Otherwise both are the same.
The tracks are all relatively short (30 seconds - 2 minutes), the entire album is just above 2 hours. The recording quality of the MP3 versions varies widely between 64 and 320 kbps.
While no human ear can hear the difference between 320 kbps sampling rate and a raw recording, 64kbps vs. 320kbps is audible. However, you still need to actively listen for the differences.
The genre is general ambience tracks leaning towards a medieval touch with a strong focus on string instruments. The album includes no studio recordings of natural music, the sound is 100% computer generated, with some shortcomings in quality born from that very source.
If you are an artist yourself, familiar with the limitations of keyboards available on the general market, you will most likely notice the typical telltale cuts and clips in the voices, especially in the string instruments being cut off in an unnatural way. Some people may not even notice, but if you got a trained ear, this feat can get increasingly annoying over time. It still is good music - just don't expect the type of organic flow and rich sound that natural instruments bring to the table.
While the composition by itself is great, most tracks are "functional", tied into the game. They make good "background noise" while you are working or doing other things, but are not necessarily worth listening to just by themselves.
There are a handful exceptions in this OST that can stand their own, but IMHO not quite enough to justify the full price of 10 Euro. If you can, get the soundtrack on a discount or in a bundle.
