A subgenre of electronic music is electronic dance music, or EDM. Electronic dance music is a form of electronica which is generally made with the intention of being danced to, thus making it generally club-friendly and often (but not always) up-tempo in nature. Whilst a lot of electronic genres are also classified as EDM, not all forms of electronic music fall within the specific category. Examples of EDM genres include post-disco, house, techno, Eurodance, trance, trip hop, drum and bass and dubstep, as well as several others.