Question: Which person that recorded the album "Focus Plays Focus" was born on 24 December 1946?

Context paragraphs:
Trip Kennedy: Trip Kennedy (born 24 December 1946) was an Ottawa City Councillor.

Inge Ejderstedt: Inge Ejderstedt (born 24 December 1946) is a former Swedish footballer.

Walter Tate: Walter William Giffard Tate (27 August 1863 – 29 December 1946) was an English cricketer who played first-class cricket for Somerset in 1882.  He was born in Axminster, Devon; legal notices in the Sydney Morning Herald of 18 April 1947 indicate a "William Walter Giffard Tate" died at Randwick, Sydney, Australia on 29 December 1946 and the authoritative cricket website CricketArchive has identified this as the same person.

Philippe Clerc: Philippe Clerc (born 24 December 1946) is a former Swiss sprinter who won a bronze and a gold medal in the 100 and 200 m at the 1969 European Athletics Championships, respectively.  He competed in these events at the 1972 Summer Olympics, but failed to reach the finals.  He was married to English sprinter Janet Simpson, who died of a heart attack on 14 March 2010.

Focus Plays Focus: Focus Plays Focus (better known as its international title In and Out of Focus) is the first studio album from the Dutch rock band Focus, released in 1970 on Imperial Records.  It was the band's only album recorded with the original line-up of Thijs van Leer, Jan Akkerman, Martin Dresden and Hans Cleuver.

Uri Coronel: Maurice Uriel "Uri" Coronel (24 December 1946 – 18 July 2016) was a Dutch sports director and chairman of Ajax Amsterdam, a position he held at the club from April 2008 to 25 July 2011.  He was born in Amsterdam.

Herb Pinder (ice hockey): Herbert Charles Pinder (born 24 December 1946) is a Canadian former ice hockey player who competed in the 1968 Winter Olympics.

Roselyne Bachelot: Roselyne Bachelot-Narquin, generally known as Roselyne Bachelot (born 24 December 1946 in Nevers, Nièvre), is a French politician, former Minister of Solidarity and Social Cohesion, and a member of the Union for a Popular Movement, which is part of the European People's Party.

Erwin Pröll: Erwin Pröll (born 24 December 1946 in Ziersdorf-Radlbrunn, Lower Austria) was an Austrian conservative politician (ÖVP).  From 1992 to 2017, he was the Governor of Lower Austria.

Jan Akkerman: Jan Akkerman (born 24 December 1946) is a Dutch guitarist.  He first found international commercial success with the band Focus, which he co-founded with Thijs van Leer.  After leaving Focus, he continued as a solo artist, adding jazz fusion influences.  He has also introduced baroque music into his repertoire.

Supporting paragraphs: Focus Plays Focus Jan Akkerman
Answer: Jan Akkerman