Instruments represented:
Chitarrone. If he sees the shell at slats of the body and the back of the neck.
Spanish guitar. The instrument represented in other works of Bettera is characterized from the inlay of the eight-pointed star around the hole, closed by a funnel-shaped rosette of parchment, with a purfling made from wood black and white that holds squares white / blacks, used also for edging of the soundboard and as inserts in the ribs. The bridge/tailpiece has a mustache perhaps at incision and stucco, such as the decoration of the bottom of the table.
Violin. Perfectly outlined with its "Baroque" setting as his bow.
Viola bastarda. You see only part of the body, the bridge placed between the effe, among which superiors eyes there is a carved rosette. Well perceivable is also the form of the baroque keyboard.
The brass of which one sees the bell and part of the pipe can not be classified with certainty, as well as the wood with holes outlined far left, partially covered by the body of the chitarrone.