Editing Cello (section)

===Alternative materials===
In the late 1920s and early 1930s, the [[Alcoa|Aluminum Company of America (Alcoa)]] as well as German luthier G.A. Pfretzschner produced an unknown number of aluminum cellos (in addition to aluminum double basses and violins).<ref>{{Cite book|url=https://books.google.com/books?id=r8zTDQAAQBAJ|title=Aluminum in America: A History|last=R. Skrabec|first=Quentin|publisher=McFarland|year=2017|isbn=9781476625645|pages=88}}</ref> Cello manufacturer [[Luis and Clark|Luis & Clark]] constructs cellos from [[carbon fibre]]. Carbon fibre instruments are particularly suitable for outdoor playing because of the strength of the material and its resistance to humidity and temperature fluctuations. Luis & Clark has produced over 1000 cellos, some of which are owned by cellists such as [[Yo-Yo Ma]]<ref>{{cite web |url=https://www.nytimes.com/2009/01/19/arts/music/19carb.html?_r=0 |title=Cold Case: Luis and Clark Carbon Expedition for Yo-Yo Ma? |newspaper=The New York Times |date=January 18, 2009 |author=Chris Museler |access-date=October 4, 2016}}</ref> and [[Josephine van Lier]].<ref>{{cite web|last1=van Lier|first1=Josephine|title=Luis and Clark Carbon Fibre Cells|url=http://www.albertastringassociation.ca/docs/ASANewsletterSummer2006.pdf|website=Alberta String Association|access-date=4 October 2016|archive-url=https://web.archive.org/web/20140407090955/http://www.albertastringassociation.ca/docs/ASANewsletterSummer2006.pdf|archive-date=April 7, 2014|date=2006}}</ref>