Music videos first started to be made around about the 1920's but these music videos were very simple and basic because of the use of technology was far from advanced. They normally would just show a live or band performance of the song however they started to incorporate talkies and music videos by putting music videos in the short films, an example of this would be Bessie Smith's song St. Louis Blues which features in a short film showing in this clip 6 minutes 58 seconds in. This was a good way of promoting a song as at this time lots of people were going to the cinemas to watch these styles of film.
It then wasn't until the mid 1970's that it started to change again like for example Queens, Bohemian Rhapsody also changed the face of music videos as it was one of the first music videos to contain any visual effects which was amazing for anyone watching it at this time it also changed the way people started to watch music videos because before everyone watched music videos in the cinema then after this video was released the industry thought of the idea to bring out TV channels just for music videos to be watched on.
Music videos only got bigger as time progressed but this was down to lots of different factors but one major one is the start of the TV channel MTV which started in the 1980's and basically showed music videos all the time. This TV channel is still massive today and shows all the modern music as well as classics of all different genres.