Strings
Viola d'amore

The viola d'amore is a 6- or 7-stringed musical instrument with additional sympathetic strings, which is often associated with music of the Baroque period. It is played under the chin in the same manner as the violin. A player of the instrument may be called a violist d'amore, or simply referred to as a viola d'amore player.
Read more on Wikipedia1 cantata with viola d'amore