Editing Cello (section)

===Strings===
Historically, cello [[String (music)|strings]] had cores made out of [[catgut]], which, despite its name, is made from sheep or goat intestines. Most modern strings used in the 2010s are wound with metallic materials like [[aluminum]], [[titanium]] and [[chromium]]. Cellists may mix different types of strings on their instruments. The pitches of the open strings are C, G, D, and A (black note heads in the playing range figure above), unless alternative tuning ([[scordatura]]) is specified by the composer. Some composers (e.g. [[Ottorino Respighi]] in the final movement of ''[[The Pines of Rome]]'') ask that the low C be tuned down to a B-flat so that the performer can play a different low note on the lowest open string.