One of the most important musical instruments in recent music history, The Roland TB-303 was a failure at it's intended purpose. The 303 was designed to be an “automatic Bass machine”. It was introduced in the early 80’s along with the TR-606 Drumatix drum machine. The two were relatively inexpensive, and were intended to provide a rhythm section backup. Meant to be a backup machine for practicing or for demos, the TB could be programmed with 16-step patterns that could then be arranged into songs. Read more on Last.fm.