Back in 2012, I was googling around trying to find a website showing a scale in a specific key, and I couldn't find it.
So I thought it would be useful to create a site which showed all scales, chords etc, in all keys.
And of course, include some nice pictures and all the audio, in both mp3 and midi format.
After a lot of hard work, I wrote a program that generated all this stuff programmatically, and that output of that is what you see today.
Given a choice of mp3 or midi, this audio format should be your first choice to download on any page, as it is the most widely supported format across all operating systems and browsers.
However, the file sizes are much larger than the .mid format below.
To download (Desktop site version only), just click the link to download it to your usual browser download location, then open the ''.mid' file to listen to it. Sometimes your browser will play the audio straight away.
If you do not hear the midi file playing in your browser straight away, check your browser downloads folder, since it is most likely that the midi file has been downloaded so quickly that you did not even see it happen - the midi files are tiny, so they download quickly.