Various types of beaver hats
"Cock Up Your Beaver" is a song and poem by Robert Burns, written in 1792.
It was based on an older song, published as "Johnny, cock up thy Beaver". It is widely claimed that this is found in "The Dancing-Master", a collection of folk tunes published by John Playford of London in 1657. However, this is disputed by Scottish music scholar John Glen who states it first appears in the 1686 edition of "The Dancing Master"
It was published in an 1821 compilation by James Hogg, with four verses and musical notation of a tune.
It is written in Scottish dialect; the beaver refers to a kind of hat.
The original version was English, and ridiculed Scotsmen who settled in London after the accession of James VI. to the throne of England, possibly satirizing the costumes of highland chiefs entering the lowlands. 
The song, hand-written by Burns, is in the Johnson's Museum.
- ^ Iain Macdonald. "BBC - Robert Burns Works - Cock Up Your Beaver". http://www.bbc.co.uk/robertburns/works/cock_up_your_beaver/. Retrieved 2009-08-24.
- ^ a b James Johnson, Robert Burns, Stephen Clarke, William Stenhouse, David Laing, Charles Kirkpatrick Sharpe (1853), The Scots Musical Museum: Consisting of upwards of six hundred songs, with proper basses for the pianoforte (Vol. 4) (New ed.), The Scots Musical Museum, p. 301, http://books.google.ca/books?id=fGEVAAAAQAAJ&printsec=frontcover&dq=The+Scots+musical+museum:#v=onepage&q=beaver&f=false
- ^ Early Scottish melodies: including examples from mss. and early printed Works by John Glen p. 160
- ^ James Hogg (1821), The Jacobite relics of Scotland: being the songs, airs, and legends, of the adherents to the house of Stuart, 2, W. Blackwood, pp. 127, 128, http://books.google.com/?id=nYM4AAAAIAAJ&pg=PA30&dq=%22cock+up+your+beaver%22&q=%22cock%20up%20your%20beaver%22
- ^ Robert Burns, Robert Chambers, William Wallace (1896), Robert Chambers, William Wallace, ed., The life and works of Robert Burns, 4, Longmans, Green, p. 342
- ^ Allan Cunningham (1825), The songs of Scotland, ancient and modern; with an intr. and notes, http://books.google.com/?id=99kGAAAAQAAJ&dq=%22cock+up+your+beaver%22