Thomas Preston was the son of the famous eighteenth-century London-based “guittar” maker John Preston (1727–1798). The English guittar (known as a cistre on the Continent) was a plucked-string instrument, similar in shape to a sixteenth-century cittern. Strung with wire, its six courses were tuned to an open-C chord and used extensively for accompanying the voice. The instrument was widely popular throughout Britain and Europe in the second half of the eighteenth century.