Gdańsk ( /ɡəˈdænsk/ or /ɡəˈdɑːnsk/; Polish: [ˈɡdaɲsk]; German: Danzig, pronounced [ˈdantsɪç]) is a Polish city on the Baltic coast, at the center of the country's fourth-largest metropolitan area.

The city lies on the southern edge of Gdańsk Bay (of the Baltic Sea), in a conurbation with the city of Gdynia, spa town of Sopot, and suburban communities, which together form a metropolitan area called the Tricity (Trójmiasto), with a population of over 800,000. Gdańsk itself has a population of 455,830 (June 2010), making it the largest city in the Pomerania region of Northern Poland.

Gdańsk is Poland's principal seaport as well as the capital of the Pomeranian Voivodeship. It is also historically the largest city of the Kashubian region. The city is close to the former late medieval/modern boundary between West Slavic and Germanic lands and it has a complex political history with periods of Polish rule, periods of German rule, and extensive self-rule, with two spells as a free city. It has been part of modern Poland since 1945.

David Jon Gilmour,CBE (born 6 March 1946) is an English rock musician and multi-instrumentalist who is best known as the guitarist, one of the lead singers and main songwriters in the progressive rock band Pink Floyd. It is estimated that as of 2010, the group have sold over 250 million records worldwide, including 74.5 million units sold in the United States.

In addition to his work with Pink Floyd, Gilmour has worked as a producer for a variety of artists, and has enjoyed a successful career as a solo artist. Gilmour has been actively involved with many charities over the course of his career.

In 2003, he was appointed CBE for his charity work and was awarded with the Outstanding Contribution title at the 2008 Q Awards. In 2011, Rolling Stone Magazine ranked him number 14 in their list of the greatest guitarists of all time.

Gilmour was born in Cambridge, England. His father, Douglas Gilmour, was a senior lecturer in zoology at the University of Cambridge and his mother, Sylvia (née Wilson), was a teacher and film editor who raised her family at Grantchester Meadows, later immortalised by a Roger Waters song on Pink Floyd's Ummagumma. He has a younger brother who is also a musician.

Jean Michel André Jarre (born 24 August 1948 in Lyon) is a French composer, performer and music producer. He is a pioneer in the electronic, ambient and New Age genres, and known as an organiser of outdoor spectacles of his music featuring lights, laser displays, and fireworks.

Jarre was raised in Lyon by his mother and grandparents, and trained on the piano. From an early age he was introduced to a variety of art forms, including those of street performers, jazz musicians, and the artist Pierre Soulages. He played guitar in a band, but his musical style was perhaps most heavily influenced by Pierre Schaeffer, a pioneer of musique concrète at the Groupe de Recherches Musicales.

His first mainstream success was the 1976 album Oxygène. Recorded in a makeshift studio at his home, the album sold an estimated 12 million copies. Oxygène was followed in 1978 by Équinoxe, and in 1979 Jarre performed to a record-breaking audience of more than a million people at the Place de la Concorde, a record he has since broken three times. More albums were to follow, but his 1979 concert served as a blueprint for his future performances around the world. Several of his albums have been released to coincide with large-scale outdoor events, and he is now perhaps as well known as a performer as a musician.