Usually, you will know little to nothing of the bikes history. We also want to spend as little as possible on this bike until we know if the engine and all the gears work. Just shifting through the gears by hand is not good enough.
This overview showcases a few of the most significant developments in synthesizer history. It may surprise you to learn that the earliest seeds of modern electronic synthesizers began in the twilight years of the 19th century. In 1896/1897, an American inventor named Thaddeus Cahill applied for a patent to protect the principle behind an instrument known as the Telharmonium, or Dynamophone.
Synthesizers were first used in pop music in the 1960s. In the 1970s, synths were used in disco, especially in the late 1970s. In the 1980s, the invention of the relatively inexpensive, mass market Yamaha DX7 synth made synthesizers widely available. 1980s pop and dance music often made heavy use of synthesizers.