The correct term is a session musician. Session musicians are professional hired musicians that are used normally on a short term basis in the studios to help record albums they are also used for live performances as the backing musicians so for example in a jazz combo on stage.
Answer: The Romanticism period saw a large number of women emerge as leading composers of literature, music, and art. This in part was because of the changing roles men and women played in the household, a changing work dynamic which accepted women into positions usually only allowed for men (Industrialization), and the recent Abolitionist movement spreading throughout America in the mid 19th century.
Vocal music, because at that time the people were controlled by the church's authority. It was illegal to play or sing music, but since the Renaissance time period was predominant with instrumental music, vocal music was only allowed on special occasions.
