Focus on this artwork and discuss the Description.
The small 20×18 cm (8×7 inch) artwork is painted on a wood panel, as is the uncontested Vermeer painting Girl with a Red Hat, which is the only other painting associated with Vermeer on a wood panel. Girl with a Red Hat is slightly larger, 23×18 cm (9×7 inch).
The painting is a close-up portrait of a girl, facing front, wearing a widely conical striped hat and a blue-green fur-trimmed jacket, holding a double recorder. The background is a tapestry similar to that in Girl with a Red Hat. 
The fur-trimmed jacket is known as a jak or manteltje, a garment very prevalent in at-home attire for Dutch women of all socioeconomic classes in the 17th century, and commonly found worn by women in domestic genre paintings by mid to late 17th-century Dutch painters such as Gerard ter Borch, Gabriel Mets, and Frans van Mieris. Similar jackets are worn in Vermeer’s Woman Holding a Balance and The Concert, and a yellow yak is worn in A Lady Writing.Girl with a Flute  is a tronie, a study of a remarkable facial expression or a stock character in costume. This was a popular genre in Dutch Golden Age painting. Tronies were produced for the mass market, not for patrons. Unlike typical portraits, the models were not identified.
Gerard ter Borch tronie double recorder Frans van Mieris The Concert Dutch Golden Age painting Girl with a Red Hat Woman Holding a Balance Tronie portrait facial expression stock character Gabriel Mets A Lady Writing