You can make a donation on their Bandcamp, minimum € 1 or more.
Free download link on: http://www.tchernolille.com/#!grid/chbi
PS :I share with my fb page. All functions are active (like, shares, comments). You can access the pages fb artists directly. To share the article wordpress (not my fb publications) in google, wordpress, or fb, open the article by clicking on the title.