The title of this article is “Piano for girls and trumpet for boys: are musical instruments genderdivided?” The article will try to answer the question whether it is possible to claim that musical instruments are indeed “gendered”. I will look at various symphony orchestras in Europe, particularly Vienna Symphony orchestra, to look at gender balance and gender biases. The gendered history of various musical instruments will also be discussed, and a particular focus will be on the keyboard instruments since they were viewed as particularly appropriate instruments for women. I will refer to historical sources in order to put the musical instruments' gendered aspects into perspective. The virginal and piano as gendered instruments will have a particular focus; the piano is often viewed as a cultural symbol, and the picture of the piano playing young lady also became a symbol of the whole 19th century's ideas, such as proper conduct and the bourgeoisie - it became perhaps the most important cultural phenomenon in the domestic art and the domestic culture.