The Tromba Marina is a stringed instrument of trapezoidal or triangular shape used in medieval Europe and during the Renaissance, surviving until the XVIII century, from when many models of large size have been preserved.
Its name comes from its sound similar to the trumpet. It is produced by the bridge, which was deliberately built with a serious decompensation towards one of their feet, so that when the string is bowed, the vibration makes lose its balance and the free feet rattle against the top surface. This system was later added to the hurdy-gurdy. It is played with a small bow near the nut and just by pressing the string lightly with the thumb on nodal points which produces only natural harmonics.
The Tromba Marina in the photograph is based on the paintings of the Cathedral of Segovia. String lengths: 800 / 550 mm.
Musicians, detail of the paintings in the cathedral of Segovia. Photo by Pablo Zamarrón.