The earliest use of steel wire occurred in 1735 in Wales, but is not thought to have been used for the stringing of instruments.
The Broadwood piano company stated that they were using steel wire in 1815 from Germany and Britain, but this has not been confirmed.
By approximately 1400 the clavichord had about ten strings and inearlier examples two notes or more were produced from that string or pair of strings by making two or more tangents contact thesame string or pair of strings at different points. A later type, in whicheach note has its own string, or strings, is called a "Bundfrei"clavichord.
The clavichord is the simplest and usually the smallestof string keyboard instruments.
The strings of the psaltery are plucked with the fingers or with a feather quill, as are the strings on the harpsichord.