What is Chris Koerts?
{{Infobox person | name = Chris Koerts | image = Chris Koerts (Earth & Fire) - TopPop 1973 2.png | caption = Koerts in 1973 | birth_name = | birth_date = {{Birth date|1947|12|10|df=y}} | birth_place = [[Leiden]], Netherlands | death_date = {{death date and age|2022|11|10|1947|12|10|df=y}} | death_place = | monuments = | residence = | nationality = Dutch | occupation = guitarist, composer and record producer | known_for = | relatives = | awards = }} '''Chris Koerts''' (10 December 1947 – 10 November 2022) was a Dutch guitarist, composer and record producer. Koerts was born in Leiden in 1947 and spent part of his childhood in Indonesia.<ref name=ref1>{{cite web|url=https://www.nrc.nl/nieuws/2022/11/11/gitarist-chris-koerts-1947-2022-maakte-met-zijn-tweelingbroer-rockband-earth-fire-groot-a4147998 |title=Gitarist Chris Koerts (1947-2022) maakte met zijn tweelingbroer rockband Earth & Fire groot|work=[[NRC Handelsblad]]|date=12 November 2022|access-date=12 November 2022|language=nl}}</ref> At the age of 14, Koerts started a duo with his twin brother [[Gerard Koerts]] called ''The Singing Twins''. In 1967 they founded the rock and pop band [[Earth and Fire]]. The first hit ''Seasons'' was written by [[George Kooymans]] but later the Koerts brothers started writing their own songs. The most successful one was ''Weekend''.<ref>[https://web.archive.org/web/20150923232434/http://www.earth-and-fire.nl/lyrics/lyrics_realityfillsfantasy.htm#weekend Tekst van ''Weekend'', gezongen door Jerney Kaagman]</ref> In 1979 Koerts left the band and started studying [[musicology]]. There was a comeback tour in 1987. In 1988, the Koerts brothers returned as ''Earth and Fire Orchestra'' and released two albums ({{ill|Frames (Earth & Fire Orchestra)|nl}} and {{ill|Escape (Earth & Fire Orchestra)|nl}}). Together they also wrote and produced music for singer [[Anneke Grönloh]] and [[Kinderen voor Kinderen]].<ref name=ref1 /> After his brother Gerard died in 2019, Chris Koerts died on 10 November 2022 at the age of 74 from a [[lu