Deezer was to give unlimited access to music lovers through streaming technology. The site in its original incarnation was charged with copyright infringement by French agency SACEM, and after being shut down in April 2007 was relaunched as Deezer in August 2007, having reached an agreement with SACEM to pay copyright holders with revenue from advertising on the site and by giving users the ability to download songs streamed on Deezer from iTunes, with Deezer receiving a commission from each purchase. At the time of its launch in 2007, Deezer had not yet negotiated agreements with major music labels and therefore
Tidal barrage pressure). When the water level outside of the basin or lagoon changes relative to the water level inside, the turbines are able to produce power. The basic elements of a barrage are caissons, embankments, sluices, turbines, and ship locks. Sluices, turbines, and ship locks are housed in caissons (very large concrete blocks). Embankments seal a basin where it is not sealed by caissons. The sluice gates applicable to tidal power are the flap gate, vertical rising gate, radial gate, and rising sector. Only a few such plants exist. The first was the Rance Tidal Power Station, on the Rance river,