I started to look for audio files in the Mixcloud web pages, using the web inspector. 
But could not find any!

It seems that Mixcloud works with a logic of streams...
And each stream is built from 10 second stream segments...
Hmm...

A few scripts to explore these stream segments, download them and collect them on a web page:

- open a Mixcloud page
- create a folder in public_html on cerealbox for these explorations
  you can use: $ mkdir, $ cd and $ ls
- copy the link of the streamindex-a1.m3u8 file
  open the inspector
  then go to network > media 
  then right click on streamindex-a1.m3u8, and "copy link location"
- download this file to cerealbox with curl: $ curl URL > stream.m3u8
- then, you can try the following scripts. 
  you can open and edit them with $ nano
  and then execute them with $ bash
- list-all-segments.sh
- download-segments.sh
- turn-segments-into-ogg.sh
- from-segments-to-html-page.sh
- open the web page it created