TuneCore and Tidal to improve their services for their artists. Also in 2015, TuneCore expanded its presence in the UK and Australia announcing dedicated websites including localized currency and content for each region. It also introduced its YouTube Sound Recording service to collect revenue for artists when their sound recordings are used anywhere on YouTube. In September 2015, Tunecore stepped up its live event offerings, throwing LA's independent music community its first ever Indie Artist Forum, which focused on educating and fostering collaboration amongst aspiring professional musicians while engaging on a dialog around the ins and outs of the current landscape
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,