Problem: Gong are an international progressive rock band that incorporates elements of jazz and space rock into their musical style. The group was formed in Paris in 1967 by Australian musician Daevid Allen and English vocalist Gilli Smyth. Band members have included Didier Malherbe, Pip Pyle, Steve Hillage, Mike Howlett, Pierre Moerlen, Bill Laswell and Theo Travis. Others who have played on stage with Gong include Don Cherry, Chris Cutler, Bill Bruford, Brian Davison, Dave Stewart and Tatsuya Yoshida.

1972 saw the start of increasing line-up disruption for Gong. Laurie Allan left in April to be replaced by Mac Poole, then Charles Hayward and then Rob Tait, before returning again late in the year. Gilli Smyth left for a time, returning to Deia to look after she and Daevid Allen's baby son, and was replaced by Diane Stewart, who was the partner of Tait and the ex-wife of Graham Bond. Christian Tritsch moved to guitar and was replaced on bass by former Magma member Francis Moze, while the band's sound was expanded with the addition of synthesizer player Tim Blake.  In October they were one of the first acts to sign to Richard Branson's fledgling Virgin Records label, and in late December traveled to Virgin's Manor Studio in Oxfordshire, England, to record their third album, Flying Teapot. As they settled in, they were played a rough mix of Mike Oldfield's Tubular Bells, then already in production. Towards the end of their recording sessions they were joined by English guitarist Steve Hillage, whom they had met a few weeks earlier in France playing with Kevin Ayers, and who had replaced Oldfield in Ayers' band. He arrived too late to contribute much to the album, but would soon become a key component in the Gong sound.  Flying Teapot was released on 23 May 1973, the same day as Tubular Bells, and was the first installment of the Radio Gnome Invisible trilogy, which expounded upon the (previously only hinted at) Gong mythology developed by Allen. The second part, Angel's Egg, followed in December, now featuring the 'classic' rhythm section of Mike Howlett on bass and Pierre Moerlen on drums. In early 1974 Moerlen left to work with the French contemporary ensemble Les Percussions de Strasbourg and Smyth left to give birth to she and Allen's second son. They were replaced once again by Rob Tait and Diane Stewart, and the band moved from its French base at Pavillon du Hay to an English one at Middlefield Farm, near Witney, Oxfordshire. Moerlen, and later Smyth, returned in order to complete the trilogy with the album You, but by the time of its release, in October 1974, Moerlen was back with Les Percussions de Strasbourg and Smyth had settled permanently in Deia with her young sons. Prior to touring in support of You, Allen visited Smyth and the boys in Deia, while the rest of the band, including the departed Moerlen, recorded the basic tracks for Hillage's first solo album, Fish Rising. Moerlen was initially replaced in Gong by a succession of stand-ins (Chris Cutler, Laurie Allan and Bill Bruford) until former Nice and Refugee drummer Brian Davison took the job in early 1975. Smyth had already been replaced by Hillage's partner Miquette Giraudy.  In June 1974, Camembert Electrique was given a belated UK release by Virgin, priced at 59p, the price of a typical single at the time; a promotional gimmick which they had used before for Faust and would use again for a reggae compilation in 1976. These ultra-budget albums sold in large quantities because of the low price, but the pricing made them ineligible for placement on the album charts. The hope was that new fans would be encouraged to buy the groups' other albums at full price.

What was Tubular Bells?

Answer with quotes: Mike Oldfield's Tubular Bells,

Question:
Royksopp (Norwegian pronunciation: ['royksop]) are a Norwegian electronic music duo from Tromso, formed in 1998. The duo consists of Svein Berge and Torbjorn Brundtland. Royksopp is the Norwegian word for the class of mushrooms known as puffballs, the band's name substitutes o in place of o. Berge and Brundtland were introduced to each other through a mutual friend in Tromso, Norway. They enjoyed the same films and music, and shared an interest in electronics.
Royksopp's third studio album, Junior, was released on 23 March 2009, featuring the single "Happy Up Here". The song debuted on BBC Radio 1's Pete Tong show on 9 January 2009. It was officially released digitally on 16 March 2009. The music video for "Happy Up Here", made by Reuben Sutherland, features elements from the arcade game Space Invaders. Both the single and the video were met with positive reactions from the press and fans.  "The Girl and the Robot", the second single from the album Junior, featuring vocals from Swedish singer Robyn, was released on 15 June 2009. The vinyl and digital versions of the single included remixes of the song by Kris Menace, Chateau Marmont and Spencer & Hill. At the 52nd Grammy Awards, the Jean Elan remix of "The Girl and the Robot" was nominated for Best Remixed Recording, Non-Classical. "This Must Be It" is the third single from the album, including vocals from Swedish singer Karin Dreijer Andersson of The Knife and Fever Ray. The single also featuring remixes by Thin White Duke, LehtMoJoe, Rex the Dog and Apparat, among others. The band later released the stems for the song "Tricky Tricky" as part of a remix competition and the winning entries were released on 27 October 2009.  Junior was a success around the world. The album peaked at number one in Norway, the band's third consecutive release to do so. Junior also peaked at number 21 on the UK Albums Chart and charted on many Billboard charts, including the Billboard 200-the first Royksopp release to do so-where it peaked at number 126. The album also peaked at number four on the Top Electronic Albums chart and number two on the Top Heatseekers chart.  Junior was followed by Senior, which is more quiet, "withdrawn and introspective" and "create[s] an atmosphere and an ambiance". Senior is the duo's first album to consist solely of instrumental tracks. The first single from the album, "The Drug", was released on 9 August 2010. The album itself was released on 13 September 2010, and was successful in the band's native Norway, peaking at number one, the band's fourth consecutive release to do so.
Answer this question using a quote from the text above:

And Senior?

Answer:
Senior is the duo's first album to consist solely of instrumental tracks.