Editing Musical keyboard (section)

==Other uses==
{{See also|Keyboard percussion instrument}}
[[File:Telegraph Keyboard.jpg|thumb|Keyboard of a Letter-Printing Telegraph Set built by [[Siemens & Halske]] in Saint Petersburg, Russia, ca.&nbsp;1900]]

A number of percussion instruments—such as the [[xylophone]], [[marimba]], [[vibraphone]], or [[glockenspiel]]— have pitched elements arranged in the keyboard layout. Rather than pressing a key, the performer typically strikes each element (e.g., a metal or wood bar) with a [[percussion mallet|mallet]].

There are some examples of a musical keyboard layout used for non-musical devices. For example, some of the earliest [[printing telegraph]] machines used a layout similar to a piano keyboard.<ref>George M. Phelps, {{US patent|0026003}} ''Improvement in Telegraphic Machines'' issued November 1, 1859</ref><ref>[http://www.telegraph-history.org/george-m-phelps/house.htm The House Printing Telegraph (image)]</ref>