1988 Korg M1 Music Workstation

The Korg M1 Music Workstation was an innovative synthesizer and music workstation that was manufactured by the company Korg and officially released to the public in 1988.

Background

The M1 came into existence at a pivotal moment in the evolution of synthesizers, as they were transitioning from analog technology to digital capabilities; with Yamaha’s FM synthesis and Roland’s linear arithmetic already holding dominant positions on the musical charts, Korg found it necessary to implement a strategic pivot. Their collaborative efforts with Yamaha during the mid-1980s had produced FM-based models such as the DS8, but the introduction of the M1 represented a significant shift toward sample-based synthesis that was intricately paired with onboard sequencing features. Junichi Ikeuchi, who served as Korg’s chief engineer, took the lead in the design process, with the overarching goal of creating an all-in-one tool that would effectively reduce the need for reliance on external gear, a concept that would later be referred to as the “workstation.”

In contrast to earlier synthesizers that primarily prioritized raw sound design capabilities, the M1 integrated a sequencer, drum sounds, and effects all into a single cohesive unit; this comprehensive approach mirrored the increasingly popular DIY ethos of late-1980s home studios, where musicians who were conscious of their budgets sought to minimize clutter in their creative spaces. The incorporation of PCM samples—specifically the 16-bit waveforms that were stored in ROM—enabled the production of realistic piano, organ, and string tones, marking a notable departure from the metallic FM sounds that were characteristic of competing products. Korg’s partnership with Yamaha extended into the realm of hardware as well, utilizing their FS keybed, which was well-known for its weighted action, and this feature quickly became a significant selling point for performers who were accustomed to playing on stiff, unresponsive keys.

Features

At its very core, the M1 provided 16-voice polyphony and featured an eight-track sequencer that was capable of storing up to ten songs, each of which could span a total of 250 bars; however, the note capacity fluctuated between approximately 4,400 and 7,700 notes depending on how users made decisions regarding the allocation of memory between patches and sequences. The “AI Synthesis” system combined sampled waveforms with subtractive synthesis techniques, allowing musicians to layer or modulate sounds utilizing two oscillators for each voice, along with a digital filter, and three separate envelope generators. Effects such as reverb, chorus, and phaser were integrated into the device, a rarity during that particular time period, which effectively saved users from the additional expense of purchasing outboard processors.

The interface was designed around a joystick that provided real-time pitch and modulation control, representing a significant departure from the wheels or ribbons that were commonly seen on rival synthesizers, while the 61-key layout struck a delicate balance between portability and playability. An optional EXK-M1 ROM expansion doubled the available PCM waveforms, adding brass, guitars, and additional drum sounds; however, this expansion required physical installation to be completed. Critics pointed out that the menu-driven editing system—accessed through a small LCD screen—could feel cumbersome when compared to the more tactile experience offered by knobs and sliders, but the trade-off was a streamlined design that fit seamlessly into cramped studio environments.

Popularity and Legacy

Although Korg never officially confirmed the exact sales figures, industry estimates suggest that the total number of M1 units sold reached approximately 250,000 by 1995, which eclipsed the Yamaha DX7’s sales of 200,000 units, making it the bestselling synthesizer of its time. The presets—such as the well-known “Universe” and “House Piano”—quickly became staples in late-1980s pop music, house beats, and film scores, being featured prominently on tracks by notable artists like Madonna and 808 State. The sequencer and drum tracks provided solo artists with the ability to sketch out full arrangements without the need for a computer, serving as a precursor to modern digital audio workstations (DAWs), although some producers found the workflow to be somewhat limiting when compared to traditional hardware sequencers like the Atari ST.

Roland’s D-50 and Yamaha’s SY-series responded with their own hybrid approaches to sound synthesis, but the affordability of the M1—priced at $2,749 upon its launch, which is roughly equivalent to $7,000 in today’s currency—along with Korg’s aggressive marketing strategies, successfully secured its place in recording studios. By the early 1990s, it became increasingly common to see M1s paired with Akai samplers and Alesis drum machines, forming a trifecta of budget-friendly equipment that was favored by many musicians. Its influence continued to resonate into the 2000s, with software emulations such as the Korg M1 Plugin preserving its sounds’ relevance, although purists argue that the character of the original hardware was enhanced by its gritty digital-to-analog converters (DACs) and analog outputs.

Video Reviews and Commercials

In this video, a music enthusiast reviews a scanned August magazine, discussing vintage synthesizer advertisements, specifically the D and rack-mounted versions. He reminisces about music technology from the past, including the Emulator, DAT technology, and an ultimate support stand, sharing personal memories and observations about the equipment.

Availability and Collectability

Used Korg M1 units frequently surface on platforms such as eBay and Reverb, with prices ranging between $400 and $1,200 depending on the condition of the instrument. The plastic casing and membrane buttons are known to be prone to wear and tear, with yellowed panels and unresponsive pads being common issues that arise over time; additionally, the internal battery, which is critical for storing patches, often fails and requires a certain level of soldering skills to replace. Enthusiasts tend to seek out the later “Rev B” models, which addressed early MIDI timing glitches, or the more rare M1R rackmount version that omits the keyboard but retains the sound engine.

Collectors often engage in debates regarding whether the widespread availability of the M1 undermines its appeal as a vintage instrument; unlike rarer synthesizers such as the Roland TB-303, its mass production means that mint condition units are indeed scarce but not entirely unobtainable. The inclusion of the EXK-M1 expansion, if it is part of the purchase, can add an additional $150 to $300 to the overall price. For those who are unwilling to maintain aging hardware, Korg’s iM1 iPad app and VST versions provide access to the original samples with modern conveniences such as touchscreen editing capabilities; however, many still believe that the tactile experience of the joystick and the substantial feel of the Yamaha keybed are irreplaceable aspects of the original instrument.