Created in 1924 by Mr. Lioyd Loar, the electric guitar was and is probably..... Is the invention that revolutionized the music industry. From jazz to Grunge, the electric guitar knew how to make a song more interesting for the ear. From style to style, the guitar evolved according to the musicians' preferences. Longer neck for taller people, Digged strings for a better comfort, there is a lot of unique guitars because the musicians needed their instrument to be more adapted to them