English band Coldplay is the latest in the music industry to employ unconventional techniques to sell music. Starting today, for one week fans can download a copy of the group’s new single Violet Hill–for free.

The download move follows a shift away from traditional sales by various acts last year.

Last June, Prince gave away copies of his album Planet Earth with the Mail on Sunday newspaper, and indie band The Charlatans gave away a free download of their new album on radio station XFM’s website.

In October, Radiohead let fans decide how much they wanted to pay to download their seventh studio album, In Rainbows, from their official website.

A free 7-inch vinyl single of Coldplay’s Violet Hill will also be given away on the cover of music weekly NME on 7 May.

The vinyl version will also include the track A Spell A Rebel Yell, which will not be available anywhere else.

What do you think about these marketing techniques, and what impact would they have on your buying habits?