Music generated inside a computer needs a little reverb to feel real. Recent advancements in soundfont technology are also promising. https://www.ir.isas.jaxa.jp/~cyamauch/AccurateSalamander/ https://ffmpeg.org/ffmpeg-filters.html#afir-1

So, many of the music releases here have been augmented, with care taken to when and when not to apply what are generally sounds of a more rich quality.

Here's what that word, "rich", means to me. I can say for certain that there is more beauty in the sounds; the producers of this soundfont have declared that its refined tuning and high quality recordings allow for the mechanical reproduction of "amazingly beautiful harmony". Additionally, the very demonstation recording supplied by those producers apply something called a "convolutional reverb".

This application of digital audio post-processing works like so: take any recording, and apply a recording of a sound in a room. That sound in a room, called by technical experts an "impulse response", allows any recording to be filtered much as if the recording were played in the actual place. In my case, I've applied an impulse response of a small room to a selection of computer-generated music files.

That's a technically detailed way of expressing that, with a little bit of extra computer processing, the music sounds more and more how I, the player, perceive it when I first play it in my own room. Maybe even better. https://web.archive.org/web/20190201211631/http://www.samplicity.com/bricasti-m7-impulse-responses/