During the Romantic music era (1820–1910), composers began writing out ornaments and cadenzas, and so classical musicians were not expected to improvise as much. In contemporary classical music (1945–2016), some composers began writing pieces which indicate that the performer should improvise during certain sections. Musical composition can refer to an original piece of music, either a song or an instrumental music piece, the structure of a musical piece, or the process of creating or writing a new song or piece of music. The word "song" is widely misused by people in the popular music industry to describe any musical composition, whether sung or played only by instruments. People who create new compositions are called composers in classical music. In popular music and traditional music, the creators of new songs are usually called songwriters; with songs, the person who writes new words for a song is the lyricist. For iLok machine (electronic) licenses, activation is limited to one machine per individual connected with a membership. If you upgrade your computer equipment you can deactivate your license and reactivate on your new computer. The shutdown of the vCenter/Composer server is a valid concern. There are instructions on how to move Composer to a different machine. We are in no way abandoning the technologies and capabilities that were in the Noatikl branded apps, but on all platforms their future now lies in our new app branded Wotja.