Roland TR-909

DRUM MACHINE  |  BACK

roland tr-909The Roland TR-909 Rhythm Composer is a partially analog, partially sample-based drum machine built by the Japanese Roland Corporation in 1983.[1] The brainchild of Tadao Kikumoto, the engineer behind the Roland TB-303,[2] it features a 16-step step sequencer and a drum kit that aimed for realism and cost-effectiveness. It is fully-programmable, and like its predecessor, the TR-808, it can store entire songs with multiple sections, as opposed to simply storing patterns. Only around 10,000 units were produced.[citation needed]

As with the TB-303, the realism of the TR-909 was severely limited by technical constraints, and this showed when the machines were released at relatively low prices before its rise in popularity, coinciding with the beginnings of techno and acid. More expensive, sample-based drum computers were better at faithfully reproducing real drum sounds, while the TR-909 sounded synthetic.

The drum kit contains the following sounds:

All drums except for the hi-hats and cymbals are synthetically generated; there is an oscillator circuit with a dedicated filter and envelope curve. The hi-hats and cymbals are 6-bit samples, compressed and combined with a volume envelope curve (and tuning) to allow slight modification. Thanks to the analog circuitry, various aspects of the drum sound can be modified (pitch, attack, decay).

There is also a feature called "accent"—a primitive means of humanizing the drumbeat. In a simplified model of a drummer and a kit, the loudness of the sound created would basically depend on the velocity at which the drummer hits a given part of the kit. A human drummer can emphasize certain notes by playing them louder, and the accent parameter provides a means to boost a particular step. A more complex model would also include timbral change, but reproducing this effect using the TR-909's analog electronics wasn't feasible[verification needed]. It took the industry a while to even offer this effect in sample based drum machines, due to the price of sample memory and the number of samples one would have to take to faithfully reproduce it.[verification needed]

Part of the charm of the TR-909 comes from its 16-step sequencer — today it might look primitive, not allowing subtle grooves and being limited in variety with only 16 steps, while a more lively, complicated drum pattern might need much more than that. On the other hand, acid techno music is usually simple compared to the styles that might require more than 16 steps to a bar. For example, punching the buttons 1, 5, 9 and 13 on the bass drum part would create a simple "four to the floor" beat.

While the sequencer is running, a light runs from step 1 to step 16.

The TR-909 has several editing modes: pattern editing where one focuses solely on the 16 steps, and track editing, which allows for chaining various patterns in a row. Because it has MIDI, it's also possible to control other instruments with the sequencer.

This machine and its unique sequencer (both Roland and other manufacturers used either a grid-based sequencer, showing the dots on an LCD, or another method that did not display the pattern at all) were the basis for so-called grooveboxes — self-contained compact synthesizer workstations with rudimentary keyboards and pattern-based sequencers, aimed at creators of electronic music, using sample-based sound generation and a number of realtime controls.

See availability on eBay

Roland TR909 TR 909 vintage Rare very good condition fr JAPAN
Roland TR909 TR 909 vintage Rare very good condition fr JAPAN
$4,999.00
Time Remaining: 26d 23h 40m
Buy It Now for only: $4,999.00
Add to watch list
Roland TR 909 Fantastic Condition w Professionally Modified Kick and Hi Hats
Roland TR 909 Fantastic Condition w Professionally Modified Kick and Hi Hats
$4,700.00
Time Remaining: 18d 15h 24m
Buy It Now for only: $4,700.00
Add to watch list
Roland TR 909 Rhythm Composer w Original Manual MINT Analog Drum Machine TR909
Roland TR 909 Rhythm Composer w Original Manual MINT Analog Drum Machine TR909
$4,497.00
Time Remaining: 6d 22h 37m
Buy It Now for only: $4,497.00
Add to watch list
Roland TB 303 TB303 Bass Line Vintage Analog Synthesizer Rare TR808 TR909
Roland TB 303 TB303 Bass Line Vintage Analog Synthesizer Rare TR808 TR909
$2,199.00
Time Remaining: 8d 9h 49m
Buy It Now for only: $2,199.00
Add to watch list
Jomox X Base 09 xbass tr 909 type roland drum machine w Adapter xbase 09
Jomox X Base 09 xbass tr 909 type roland drum machine w Adapter xbase 09
$599.00
Time Remaining: 21d 9h 4m
Buy It Now for only: $599.00
Add to watch list
Roland 80s vtg Official Varsity Jacket XL Leather Synth Rap TR 808 909 707 303
Roland 80s vtg Official Varsity Jacket XL Leather Synth Rap TR 808 909 707 303
$549.99
Time Remaining: 29d 22h 14m
Buy It Now for only: $549.99
Add to watch list
Roland TR 8 Aira Rhythm Performer TR 808 TR 909 Reproduction l Authorized Dealer
Roland TR 8 Aira Rhythm Performer TR 808 TR 909 Reproduction l Authorized Dealer
$499.99
Time Remaining: 25d 14h 49m
Buy It Now for only: $499.99
Add to watch list
Roland Aira TR 8 Rhythm Performer Drum Machine TR 808 and TR 909 Sounds
Roland Aira TR 8 Rhythm Performer Drum Machine TR 808 and TR 909 Sounds
$499.99
Time Remaining: 2d 8h 18m
Buy It Now for only: $499.99
Add to watch list
Roland AIRA TR 8 Rhythm Performer 808 909 Drum Machine New JRR Shop
Roland AIRA TR 8 Rhythm Performer 808 909 Drum Machine New JRR Shop
$499.99
Time Remaining: 16d 19h 16m
Buy It Now for only: $499.99
Add to watch list
Roland TR 8 Rhythm Performer TR 808 TR 909 Sounds USB MIDI Drum Machine
Roland TR 8 Rhythm Performer TR 808 TR 909 Sounds USB MIDI Drum Machine
$499.99
Time Remaining: 23d 20h 11m
Buy It Now for only: $499.99
Add to watch list
New Roland TR 8 Rhythm Performer Authentic TR 808  TR 909 Experience Machine
New Roland TR 8 Rhythm Performer Authentic TR 808 TR 909 Experience Machine
$499.99
Time Remaining: 28d 18h 6m
Buy It Now for only: $499.99
Add to watch list
New Roland AIRA TR 8 Rhythm Performer DJ Studio Live 808 909 707 Drum Machine
New Roland AIRA TR 8 Rhythm Performer DJ Studio Live 808 909 707 Drum Machine
$499.00
Time Remaining: 1d 9h 29m
Buy It Now for only: $499.00
Add to watch list
Roland AIRA TR 8 Rhythm Performer TR 909 TR 808 Drum Machine
Roland AIRA TR 8 Rhythm Performer TR 909 TR 808 Drum Machine
$499.00
Time Remaining: 20d 11h 6m
Buy It Now for only: $499.00
Add to watch list
Roland TR 8 Rhythm Performer Authentic TR 808  TR 909 Experience Machine
Roland TR 8 Rhythm Performer Authentic TR 808 TR 909 Experience Machine
$449.00
Time Remaining: 20d 14h 57m
Buy It Now for only: $449.00
Add to watch list
Roland TR 09 Boutique Drum Rhythm Composer TR 909 New ver l Authorized Dealer
Roland TR 09 Boutique Drum Rhythm Composer TR 909 New ver l Authorized Dealer
$399.99
Time Remaining: 17d 13h 37m
Buy It Now for only: $399.99
Add to watch list
Roland TR 8 AIRA 808 909 Rhythm Drum Machine in box TR 8 ARMENS
Roland TR 8 AIRA 808 909 Rhythm Drum Machine in box TR 8 ARMENS
$419.00
Time Remaining: 18d 9h 36m
Buy It Now for only: $419.00
Add to watch list
Roland AIRA TR 8 Rhythm Performer DJ Studio Live 808 909 707 Drum Machine
Roland AIRA TR 8 Rhythm Performer DJ Studio Live 808 909 707 Drum Machine
$399.99
Time Remaining: 2d 10h 11m
Buy It Now for only: $399.99
Add to watch list
New Roland TR 09 Remake TR 909 Drum Machine Aira Synthesizer Free CB BRB1 Bag
New Roland TR 09 Remake TR 909 Drum Machine Aira Synthesizer Free CB BRB1 Bag
$399.99
Time Remaining: 5d 15h 11m
Buy It Now for only: $399.99
Add to watch list
Roland Aira TR 09 Boutique Rhythm Composer TR 909 Style Drum Machine
Roland Aira TR 09 Boutique Rhythm Composer TR 909 Style Drum Machine
$399.99
Time Remaining: 7d 16h 46m
Buy It Now for only: $399.99
Add to watch list
Roland TR 09 Rhythm Composer Recreation of Iconic TR 909 Drum Machine New
Roland TR 09 Rhythm Composer Recreation of Iconic TR 909 Drum Machine New
$399.99
Time Remaining: 14d 21h 48m
Buy It Now for only: $399.99
Add to watch list






EBAY US AUCTIONS

Moog MiniMoog Model D
Saturday, August 19th, 2017
Roland MKS-7 Super Quartet rack version of JUNO 106 professional overhauled
Saturday, August 19th, 2017
Roland Juno-106 Keyboard Synthesizer and Power Cord
Saturday, August 19th, 2017
Moog Mother-32 Semi Modular Synth Module with Moog 3.5mm TS Cables and a Cloth
Saturday, August 19th, 2017
Roland SH-101 GAIA Keyboard Analog Synthesizer Used Japan
Saturday, August 19th, 2017
Studio Electronics MIDImini Minimoog Model D ORIGINAL – USED – PERFECT CIRCUIT
Saturday, August 19th, 2017
MOOG WERKSTATT 01 Semi Modular Analog Synthesizer w/ CV Expansion Board
Saturday, August 19th, 2017
Moog Mother-32 Semi Modular Synth Module
Saturday, August 19th, 2017
Overhauled! Roland JUNO-106S w/ Speakers Perfect Working!
Saturday, August 19th, 2017
Moog Minimoog D Reissue , 100% Analog Synth / 44keys , New //ARMENS//
Saturday, August 19th, 2017
Moog Mother-32 Semi Modular Synth Module with a Polishing Cloth
Friday, August 18th, 2017
Roland TR-909 Analog Drum Machine Blue Lights Forat Refurb #28449
Friday, August 18th, 2017
Jack Board PCB 292-149 / Replacement Parts for Roland Juno-106S juno106S 
Friday, August 18th, 2017
Moog Mother-32 Semi Modular Synth Module with 3.5mm cables 12″ long and Cloth
Friday, August 18th, 2017
Moog Minimoog
Friday, August 18th, 2017
CPU Board PCB291-901 / Replacement Parts for Roland Juno-106 juno106 
Friday, August 18th, 2017
Creamware Minimax ASB Moog Minimoog clone Sound Synthesizer. Midi Module
Friday, August 18th, 2017
Moog Theremini : BRAND NEW : Etherwave : [DETROIT MODULAR]
Friday, August 18th, 2017