In 1877, Thomas Edison invented the phonograph and the first song broadcasted was "Mary Had A Little Lamb".
First Flat Disc
Four years after the invention of the Phonograph, Charles Tainter invented the first flat disc record, although it wasn't as popular as the phonograph.
Electric Record Player
The Electric Record Player, which was a more developed Phonograph, was invented. With this, the dysc system became more popular and cheaper.
In 1920, Dr. Fritz Pfleumer invented tape recording in Germany, however this type of technology was not available in The United States
LP (Long-Playing Record)
Columbia Records introduced the Long-Playing Record (Vynil) which revolutionized the music industry and the way music was heard.
The first Portable Transistor was created, which similar to a "Walkman" or MP3 Player
The mass production of Compact Cassettes began in Hanover, Germany. Two years later, Cassettes were introduced in the United States
CD stands for Compact Disc and this device caused an entire revolution to music. The first full-length album to be released in CD format was 52nd Street by Billy Joel.
They became more popular than Cassettes and LP's .
Sony starts to commercialize the first Walkman devicem which consisted in a portable audio cassette player. The idea was that you could go everywhere with your music and you could listen to it even when you were "walking"
The first portable MP3 player was launched in 1997 by Saehan Information Systems. Music could be stored in little electronic devices without the need of having a tape or CD with you. You only needed Music Tracks in MP3 format and enough internal memory on the device to store them.
Apple Inc. entered the Portable Music Industry by introducing their Portable Media Player, the iPod, which consisted in a 5 GB Hard Drive that could store music.