The Barrer is made by pressing the 1st finger on two or more strings, on the same fret.
There are two Barrers, the Great and Small.
In the Small Barrer, the first finger stops but two or three strings.
In the Great Barrer, the first finger stops the whole of the six strings.
To do it with easy, it is necessary to raise the wrist, and to place the thumb entirely behind the Neck.
- “The Barrer” New and Improved Method for the Guitar, by Matteo Carcassi, Boston : Oliver Ditson & Co, 1853, p. 15. Archive.org, archive.org/details/newimprovedmeth00carc/.
- The Barrer