Deezer's recent IPO filing has shed some light on the French company's figures.

For example, 52% of the company's current active users are French, although Deezer has turned its eye on the UK, with a TV ad campaign recently launched in partnership with Channel 4.

Deezer ended June 2015 with 6.34 million total paying users - but just over half of of them, 3.34m, are classed as "monthly inactive bundle subscribers". These are users who had Deezer bundled into mobile ...