Question: Senior is the fourth studio album by Norwegian electronic music duo Röyksopp, released on which date?

Context paragraphs:
The Inevitable End: The Inevitable End is the fifth and final studio album by Norwegian electronic music duo Röyksopp, released on 7 November 2014 by Dog Triumph.  Svein Berge stated the album has "a dark energy", while Robyn described the album: "It's sad, but it's not cold.  It's very warm."  Four singles were released off the record.

Senior (album): Senior is the fourth studio album by Norwegian electronic music duo Röyksopp, released on 8 September 2010 by Wall of Sound.  Consisting of instrumental tracks only, the album is described as more introspective and withdrawn than its predecessor, "Junior" (2009).  The CD's final track "A Long, Long Way" also includes the hidden track "The Final Day", which is available as a separate track on the iTunes Store.

Happy Up Here: "Happy Up Here" is a song by Norwegian electronic music duo Röyksopp, released as a free download from their album "Junior".  The one-track digital single was also released in selected stores on 19 January 2009, while the physical single and digital EP with remixes were released on 16 March 2009.

Melody A.M.: Melody A.M. is the debut studio album by Norwegian electronic music duo Röyksopp, released on 3 September 2001 by Wall of Sound.  Songs from this album have been used in television adverts and computer games; "Remind Me" was formally featured in an advertisement for GEICO Insurance in one of their popular Caveman ads, while "Eple" was licensed by Apple and used as the introduction music for the Mac OS X v10.3 setup assistant.  The Silicone Soul remix of "Poor Leno" was featured in the soundtrack to the 2003 snowboarding video game "SSX 3". " So Easy" was the soundtrack of T-Mobile's launch advert featuring the face of a baby appearing around places in a city.

The Understanding: The Understanding is the second studio album by Norwegian electronic music duo Röyksopp, released on 22 June 2005 by Wall of Sound.  A limited edition of the album, including a bonus CD, is sold in a Digipak.  "The Understanding" debuted at number 13 on the UK Albums Chart with 22,466 copies sold in its first week.  The album was certified gold by the British Phonographic Industry (BPI) on 1 December 2006, and had sold 103,500 copies in the United Kingdom as of March 2009.

Röyksopp discography: Norwegian electronic music duo Röyksopp have released five studio albums, two mix albums, two extended plays, 27 singles, one promotional single and 18 music videos.

Do It Again (EP): Do It Again is an extended play (EP) by Norwegian electronic music duo Röyksopp and Swedish singer-songwriter Robyn, released on 23 May 2014 by Dog Triumph.  The extended play coincides with Röyksopp and Robyn's joint tour, the Röyksopp & Robyn Do It Again Tour 2014, featuring shows in Europe and North America.  Following her Body Talk Tour, Robyn travelled to Bergen, Norway, where she began working on new music with Röyksopp in early 2013, having previously collaborated with the duo on the songs "The Girl and the Robot" (2009) and "None of Dem" (2010).

Junior (Röyksopp album): Junior is the third studio album by Norwegian electronic music duo Röyksopp, released on 18 March 2009 by Wall of Sound.  Prior to its official release, the album was made available for listening on the duo's website on 13 March 2009.  Described as a mix between the styles of Röyksopp's two previous studio albums, "Melody A.M." and "The Understanding", the album features guest vocals from Scandinavian female singers Robyn, Karin Dreijer Andersson, Lykke Li and Anneli Drecker.

Röyksopp: Röyksopp (] ) are a Norwegian electronic music duo from Tromsø, formed in 1998.  Since their inception, the band has consisted of Svein Berge and Torbjørn Brundtland.  Röyksopp is the Norwegian word for puffball.

Late Night Tales: Röyksopp: Late Night Tales: Röyksopp is a mix album compiled by Norwegian electronic music duo Röyksopp.  It was released on 14 June 2013 as part of the "Late Night Tales" series.  The mix includes tracks from artists such as Vangelis, XTC, F. R. David, Tuxedomoon and Thomas Dolby.  It also features an exclusive new Röyksopp track titled "Daddy's Groove" and the studio version of their cover of Depeche Mode's song "Ice Machine".

Supporting paragraphs: Senior (album) Röyksopp
Answer: 8 September 2010