Up until this time, it was closely tied to vocal models of composition. Because of the new instrumental styles of music, there has been a need to create new instrumental forms.
Instrumental music being composed today does include pieces based on preexisting material.
In some cases, composers transcribe polyphonic vocal works into arrangements for specific instruments or sets of instruments from the same or complimentary families, such as the lute with the keyboard. We have our instruments grouped as to the family they belong to. Feel free to look around. Britannica Book of Music. The Larousse Encyclopedia of Music .