Roland TR-505

A small machine with a full kit

The TR-505 made a particular promise in 1986: take a drum machine out of the studio without giving up the kit. It ran on six AA batteries, weighed about 820 grams with them fitted, and put sixteen drum and percussion voices behind sixteen broad grey keys. A musician could carry it, write a pattern away from the rest of the equipment, then bring it back to the room through MIDI. The price quoted in two British reviews was £220 and £225 respectively. Those are period review prices, not a universal launch price.

Roland specifications; Gleadall 1986; *Making Music* 1986

It looked sober, almost clerical: pale case, long LCD, two knobs, two rows of pads. Under that surface was a neat compression of Roland's larger rhythm-machine idea. The 707 had dedicated drum sounds; the 727 added Latin percussion. The 505 put conventional drums, congas, timbale and cowbells into the same inexpensive box. Contemporary reviewers noticed that combination immediately. It made the machine useful for a straightforward beat and tempting to push the same beat somewhere less expected.

Reed 1986; Gleadall 1986

Sixteen keys; one instrument line

The keys have two lives. They play the sixteen voices, and, in step writing, they mark positions in a rhythm. Roland made room for 48 fixed patterns and 48 writable ones, with six tracks that together could hold 423 measures. A preset could also be copied into a writable location and changed. These are separate acts: hearing a factory rhythm, altering a copy, and building a new pattern.

Roland specifications; Reed 1986

The 505's LCD did not show every instrument in a pattern at once as the 707 could. A player selected a voice to see and change that one line. The whole rhythm could play while the musician concentrated on changing one instrument's line. In the period review, Tony Reed described entering in step or real time and using Manual Play over a running pattern. Roland’s manual confirms these distinct writing and playing methods.

Reed 1986; Roland owner’s manual

Sixteen voices did not mean sixteen simultaneous sounds. The toms and timbale shared a mutually exclusive group; the open and closed hi-hats were another pair that could not sound together.

Roland owner’s manual

An accent and instrument level mattered because the kit did not offer separate outputs for every voice. The 505 did have a stereo pair and headphones. Reed heard value in changing individual levels and even muting a sound while a pattern played. Levels and accents let a player change the balance of the arrangement while keeping its notes in place.

Reed 1986; Roland specifications

The back panel is part of the story

The modest case has more exits than its scale suggests: left and right audio, headphones, a footswitch, cassette data transfer, MIDI In and MIDI Out, plus power. It lacks the older Roland Sync sockets that Peter Gleadall expected a budget musician might still need. Reed likewise missed the 707's individual audio outputs. Their complaints are evidence of the workrooms into which the 505 arrived: new MIDI instruments sharing space with older gear, and musicians trying to do more with fewer mixer channels.

Roland specifications; Gleadall 1986; Reed 1986

MIDI made the voice keys useful beyond their own samples. Reed explored the 505's note assignments and its ability to trigger other instruments. Roland’s manual shows each voice with an assignable transmit channel, allowing parts to be sent to different external instruments. The resulting sound did not have to come from the 505's own kit.

Reed 1986; Roland owner’s manual

A first machine, and a machine doing another job

Robert Hood's account gives this inexpensive box a human scale. He recalled buying a used TR-505 in a Detroit pawnshop for about $100, without a manual. Someone at a music store showed him how to program it. Learning to enter and change patterns became part of learning to make his first demos. The account is about a beginning, not evidence that a particular later Hood record contains 505 drums.

Hood, *5 Magazine*, 2019

K-Klass remembered using redundancy money to buy a 505 during the group's formative period. Their later account of finding a 909 in a bedroom studio belongs to a different moment, and should not be collapsed into an invented 505 credit on Universal. Even the recollection's description of the purchased machine as “not MIDI” conflicts with the 505's documented MIDI sockets; the recollection supports the purchase, while the technical documentation establishes the connections.

K-Klass, MusicRadar, 2023; Roland specifications

Robert Henke described yet another role. In early Monolake work the TR-505 was a basic sequencer, while Yamaha TG77 sounds supplied the drums. For the group's early live set, he describes steps being set and deleted on the 505 while other instruments and effects carried the sound. This is a stronger story than a vague claim that the 505 “appears on” a record: the machine helped organize the performance, even where its own kit was rejected.

Henke, MusicRadar, 2025

What the small box taught

Period reviewers disagreed on individual sounds. One liked the cymbal's length and bass drum's snap; another heard a thin clap; another preferred the 505 to the 707 it had criticised. Those judgments belong to the writers and their listening conditions. The useful constant is practical: sixteen accessible voices, rhythm and percussion together, an editable line of sixteen steps, and enough memory to turn single bars into songs.

Gleadall 1986; Reed 1986; *Making Music* 1986

The 505's history has an intimate scale: Hood learning a second-hand machine, K-Klass acquiring an early instrument, Henke turning its sequencer toward other sounds. Each musician decides whether it will be a drummer, a sequencer, a teacher, or simply the first machine that made a pattern possible.