The Roland TR-505 Rhythm Composer, released in 1986, is a classic digital drum machine that blends standard rock kits with a full suite of Latin percussion. It features 16 PCM samples, including distinct voices like timbales, congas, and cowbells, all played back with a punchy 8-bit grit that has made it a staple in synthwave and house music.
Beyond its internal sounds, the unit is highly regarded as a budget-friendly MIDI sequencer. Because its pads transmit MIDI data, you can use its step-sequencing interface to trigger modern software or other vintage hardware. It’s also one of the most popular machines for circuit bending, as enthusiasts often add individual outputs or custom ROM chips to expand its sonic palette.