+The "909" often refers to the iconic [Roland TR-909](/wiki/TR-909), a programmable [drum machine](/wiki/Drum_Machine) released by Roland Corporation in 1983. Its unique, punchy sound—combining analog synthesis with digital samples—became a foundational element, profoundly shaping genres such as house and techno music.
+## See also
+- [Synthesizer](/wiki/Synthesizer)
+- [Electronic Music](/wiki/Electronic_Music)
+- [Techno](/wiki/Techno)
... 1 more lines