In 1827 Charles Wheatstone created the very first 'microphone'. Not yet called a microphone, the device was used to strengthen soft sounds and eventually became one of the main factors to change music. Until the 1920‘s music continued to thrive without the use of the microphone however since then, the benefits of using microphones led to new and exciting changes within the industry. One of the main things to evolve from this was ‘crooning’ - which was the sound that made singer Bing Crosby’s career.
In 1904 the first amplifier was created - initially used to boost telephone signals but also used to amplify musical instruments and sounds. This was a giant leap for the industry - not only changing the sound of music but also how it could be recorded, delivered and composed. Without the use of technology I don’t think music would survive, effecting nearly every genre of music and eliminating a number of them completely, the music industry would be a very different thing to what it is today.