Yamaha RX17

More than the beat

The name on Yamaha’s manual is unusually exact: Digital Rhythm Programmer. In 1987, the RX17 offered drum sounds, but it also offered an order for them, a set of changes within that order and a way to send notes to other instruments. A small black box could be a drummer, a song sketchbook or part of a MIDI arrangement. Its printed manual, Yamaha’s AfterTouch magazine and the company’s contemporary catalogues let us see those roles as its designers presented them, while later musicians show how far the object could travel beyond a product description.

RX17 Owner Manual ↗ RX17, AfterTouch vol. 3 no. 5, pp. 4–6 ↗ Portraits: Yamaha combo catalogue, RX spread pp. 16–17 — original file currently unavailable

Twenty-six voices, two ways to play

The RX17 held twenty-six instrument sounds behind a compact set of instrument keys. A player could switch the set available at the front panel; an external MIDI keyboard could address all twenty-six. That distinction changes what the front of the machine means. It is a small surface, but its internal kit is broader than the number of fingers it gives you at one time. Yamaha’s May 1987 AfterTouch feature explained that MIDI key velocity could be recorded as differing note levels. The owner’s manual describes playing the unit from a keyboard and writing a pattern in real time that way. Velocity was not just a performance extra. It could become part of the programmed drum part.

The sounds did not all occupy an unlimited pool. Yamaha documented an eleven-sound simultaneous limit, and certain paired voices could not sound together. Those limits belong in a detailed account because a programmer had to work within them.

RX17, AfterTouch vol. 3 no. 5, pp. 4–6 ↗ RX17 Owner Manual ↗

One bar becomes a piece

The RX17’s basic unit is the one-bar pattern. Its hundred numbered pattern locations include fifty factory programs in slots 50–99. A player could write in real time, striking instrument keys while a click sounded, or enter notes step by step. Pattern length could be set from one to thirty-two sixteenth notes, so the one-bar unit was not confined to four beats of four. Once a pattern existed, it could be copied, cleared, edited and placed in a song. The original manual even provided a paper pattern chart: a reminder that careful programming could involve pencil, printed grid and LCD as much as pressing Play.

The song mode is where this stops being a box of loops. Patterns could become numbered parts. Repeats could return a part or a group up to ninety-nine times. The editor also allowed gradual tempo and volume changes: an accelerando, a ritardando, a crescendo or a diminuendo could be part of the stored arrangement. The screen presented each as a specific instruction in a sequence.

RX17 Owner Manual ↗ RX17, AfterTouch vol. 3 no. 5, pp. 4–6 ↗

A drum machine at the centre of a system

The manual devotes real space to MIDI because the RX17 could receive a clock or send one, accept notes from a keyboard, and transmit notes from its own instrument events to other devices. Its instrument names could be assigned MIDI note numbers; separate transmit channels could send different programmed parts to different connected instruments. Yamaha pictured this as a way to make the RX17 the rhythmic centre of a larger setup, and its 1987 Digital Music Systems brochure placed the box in several proposed studios alongside keyboards, sequencers and tape recorders. These are manufacturer examples of possible connections, not evidence that any named artist owned the exact brochure system.

Denny Genovese’s September 1988 AfterTouch article gives the possibility a person and a budget. He wanted both percussion and simple sequencing for a TX81Z tone generator, but could not afford a separate sequencer and drum machine. He went to a shop, asked to read the manuals and tried the MIDI connections himself. His report describes using the RX17 as both a rhythm unit and a sender of melodic notes. It is a first-person account, published in Yamaha’s user magazine; it does not establish a named commercial recording. It does show the appeal of a machine that could do two jobs in a modest electronic setup.

RX17 Owner Manual ↗ rx17-digital-music-systems-1987 Using the RX17 as Both Sequencer and Drum Unit, AfterTouch pp. 18–19 ↗

Where the machine was encountered

For other musicians, the RX17 mattered before they owned one. Roni Size remembers going into a music shop on Gloucester Road in Bristol and programming beats on its RX17 because he and his friends could not afford the equipment. That is an account of access, curiosity and practice, not an RX17 credit for New Forms or any other named release. Henrik Lindstrand remembers receiving an RX17 at twelve as his first piece of music gear. Together those recollections make a point often hidden by record-gear lists: an instrument can affect a musician’s work long before its sound can be located on a master tape.

The later recording register offers narrower, named connections. Neil Paddock identifies RX17 samples in “I’m Calling Out Your Name”; that is a sampled-sound claim, not a claim that an original RX17 performed the released pattern. Moot Booxlé’s track notes credit the RX17 drums on “Frozen Shadow,” specifically, not across the whole Deep Integration album. Environmental Sound Collapse’s Scorched Earth Tactics equipment list names a circuit-bent RX17, but does not allocate each heard voice to it. The accounts describe different uses: sampled voices, drums on one track, and a modified instrument in a broader setup. The release sleeves identify the music; they are not photographs of the Yamaha.

The RX17’s particular achievement was making a small surface useful in a larger musical chain. Its one-bar patterns could become songs; its drum events could carry note data out to another instrument; its straightforward controls could be learned in a shop, a bedroom or a rehearsal room.

Native Instruments / Roni Size on New Forms ↗ Henrik Lindstrand and the Yamaha RX17 ↗ Neil Paddock / I’m Calling Out Your Name ↗ Moot Booxlé — Deep Integration ↗ environmental sound collapse — scorched earth tactics ↗