What is a Drum Machine?

What is a Drum Machine? What is a Drum Machine?

I don't think it's any exaggeration to say that the drum machine changed the course of humanity.

Think back to the early days of electronic music. Without drum machines, we wouldn’t have seen the rise of genres like hip-hop, electronic music, or even much of what we hear in modern pop.

The TR-808 , for instance, became the central piece of hardware in the early hip-hop scene, while the LinnDrum helped define the sound of the 80s.

In this article, we’re going to take a look at drum machines throughout history, as well as how they work, why they became such a huge part of music production, and how they went from simple tools to powerful instruments that shape the sounds of today.

Whether you’re a producer, musician, or just curious, by the end, you should have a clear picture of why drum machines continue to influence music in ways you might not even realize.

What is a Drum Machine?

Alright, let’s get into the nitty-gritty of what a drum machine actually is.

In general, a drum machine is an electronic instrument designed to create drum sounds and percussion rhythms. It’s a tool that producers and musicians use to make beats without needing an actual drummer in the room.

You can program the rhythms and sounds you want, and it will play them back in a loop.

Most drum machines don’t actually "sound" like live drums, even though some attempt to mimic the sounds of real drum kits. Early models used analog synthesis to create the sounds we know all too well today, while many newer drum machines use digital samples or a combination of both.

The key part here is that these sounds are pre-recorded or generated and then programmed to play in whatever pattern you set. The rhythm, tempo, and patterns are all up to you.

When it comes to how they work , drum machines typically let you build patterns or “beats” by placing individual drum sounds on a grid. From there, you can adjust the timing, pitch, and more, allowing for more complex rhythms than you could get on an actual drum kit.

Some drum machines even let you record in real-time, such as the Roland AIRA Compact T-8 Beat Machine or the Arturia DrumBrute Impact Analog Drum Machine .

Beyond the basic drums, some drum machines have effects, sequencers, and ADSR capabilities.

Best of all, most modern drum machines come with a built-in sequencer, which lets you create full beats with varying patterns, time signatures, and complex polyrhythms. These machines basically act as a rhythm section in one box, allowing you to push your creativity as far as it can go.

Drum Machine vs. Sampler

Many musicians who are new to hardware tend to confuse these two devices.

While similar in that they sometimes both use samples, the big difference comes down to purpose and flexibility. A drum machine is made specifically to handle rhythm and percussion. It's a focused tool, and you’re generally working with a fixed set of sounds and a simple interface designed for beat-making.

A sampler , however, is much more open-ended. It’s a tool for stretching and manipulating any kind of audio to create pretty much anything your heart desires, whether a full beat, a bassline, etc.

So, while a drum machine can give you quick access to creating the foundation of a beat, a sampler gives you a lot more freedom to experiment with all sorts of sounds and build something truly unique.

The History of the Drum Machine

Now, the fun part.

The journey of the drum machine is a fascinating one, filled with innovation, experimentation, and breakthroughs that changed the history of music forever.

Let’s take a deep dive into the history of the drum machine and how it became one of the most essential pieces of music technology.

The Rhythmicon (1930) – The First Drum Machine

The very first drum machine can be traced back to 1930, when Russian inventor Léon Theremin, who is better known for creating the theremin, was commissioned by composer Henry Cowell to develop a machine capable of producing rhythmic patterns. The result was the Rhythmicon .

Using a series of spinning discs and light sensors, it generated complex polyrhythms based on the harmonic series, capable of producing up to 16 rhythms at once.

Despite its groundbreaking design, the Rhythmicon wasn’t widely adopted, though Cowell used it in compositions like Rhythmicana . After its public debut in 1932, the instrument was largely forgotten, though some surviving models can be found in institutions like Stanford University. The Rhythmicon’s impact, however, laid the foundation for future developments in rhythm machine.

The Chamberlin Rhythmate (1957)

Fast forward to 1957, and the Chamberlin Rhythmate hit the scene. Developed by Harry Chamberlin, this was one of the first commercially produced drum machines.

The Rhythmate used magnetic tape to play pre-recorded rhythms, which were then triggered by a keyboard or buttons. The sounds were based on real drum performances, which gave it a more "authentic" feel than the mechanical rhythms of earlier machines like the Rhythmicon.

About 100 units of the Chamberlin Rhythmate were sold, and while it didn’t set the world on fire, it was an important step forward. Its real drum sounds and relatively simple operation made it an appealing choice for musicians who were looking to add rhythm without needing a live drummer. The Rhythmate was primarily used in commercial and studio settings, but its influence was felt in the years to come.

The Wurlitzer Side Man (1959) – Early Rhythmic Innovation

A few years later, Wurlitzer introduced the Side Man in 1959, which is often considered one of the first commercially successful drum machines.

The Side Man wasn’t programmable like modern drum machines, but it did have a set of preset rhythms. You could trigger rhythms like bossa nova, swing, and foxtrot, making it a unique addition to many small combos and jazz bands at the time.

The machine also had slider controls that let you adjust volume, speed, and intensity, but it didn’t have a lot of flexibility.

While the Side Man was a fun piece of equipment, it wasn’t well suited for the more energetic, dance-driven music that would come later.

The Rhythm Synthesizer (1960) – Raymond Scott’s Soothing Sounds for Baby

In 1960, Raymond Scott , an American composer and inventor, created the Rhythm Synthesizer , which would later be used on his 1964 album Soothing Sounds for Baby . The Rhythm Synthesizer was an early attempt at creating an electronic drum machine, but what set it apart was that it also made synthesized sounds that could be used to create melodic elements, too.

Scott’s work on Soothing Sounds for Baby is significant because it demonstrated the potential of electronic sounds in creating musical compositions.

The Transition to Fully Transistorized Drum Machines (Early 1960s)

By the early 1960s, the evolution from mechanical to electronic rhythm instruments marked a significant shift in music technology. The advent of transistorized circuits replaced the less reliable vacuum tubes, leading to more compact, durable, and affordable drum machines.

This period witnessed the emergence of the first fully transistorized rhythm machines, setting the stage for the modern drum machines we recognize today.​

Some of the key developments included:

  • Keio-Giken (Korg) : In 1963, Keio-Giken introduced the Donca-Matic DA-20, Japan's first electronic drum machine. While it initially used vacuum tubes, it was later updated to the transistor-based Donca-Matic DC-11 in the mid-1960s. Subsequent models, such as the Donca-Matic DE-20 and DE-11, further refined the design, replacing mechanical components with solid-state electronics for enhanced reliability and performance.
  • Ace Tone : Founded in 1960 by Ikutaro Kakehashi, Ace Tone developed the R-1 Rhythm Ace in 1964, a hand-operated percussion device using transistor circuitry. In 1967, the company introduced the Rhythm Ace FR-1, a preset rhythm pattern generator that used a diode matrix circuit. This model allowed users to select from various rhythm patterns, which made it more popular in domestic and professional settings.
  • Nippon Columbia : In 1965, Nippon Columbia introduced the CRB-81 , one of the early transistorized rhythm machines. The CRB-81 was a significant step forward, as it offered preset rhythms and used solid-state transistors, making it more reliable and practical than earlier mechanical devices. This machine featured a range of rhythm patterns, and it became one of the first to be used in professional and domestic settings.

The Eko ComputeRhythm (1972)

In 1972, Eko introduced the ComputeRhythm , one of the first programmable drum machines that was way ahead of its time. Unlike its predecessors, which could only play pre-set rhythms, the ComputeRhythm allowed you to program your own patterns by selecting which sounds to trigger and when. It used a series of buttons and a simple interface to let users input patterns, and it was a huge leap in user control and flexibility.

While the ComputeRhythm was still relatively basic by today’s standards, it opened the door for future programmable machines that would give musicians far more control over their drums.

The Roland CR-78 (1978)

In 1978, Roland released the CR-78 , which was world’s first microprocessor-based rhythm machine.

The CR-78 was a huge step forward, as it was also fully programmable. The CR-78’s drum sounds were based on analog synthesis, and it became popular for its versatility and affordability compared to other machines on the market.

You can actually hear the CR-78 on iconic albums such as The Human League's Reproduction and ABBA's Super Trouper . It would eventually lay the groundwork for future drum machines like the TR-808 and TR-909.

The Linn LM-1 Drum Computer (1980)

In 1980, Roger Linn introduced the LM-1 Drum Computer , which was a groundbreaking machine that used digital samples of real drum sounds. This gave it a much more natural and authentic feel than previous machines.

At $4,995, it was extremely expensive (equivalent to around $19,100 today), but its sound was so revolutionary that it became an instant classic.

The LM-1 was used on some of the most iconic albums of the 1980s, including Michael Jackson’s Thriller , Prince’s 1999 , and Whitney Houston’s I Wanna Dance With Somebody . It had the unique ability to replicate the sound of real drums, and along with its programmability, it became a staple in both pop and rock music.

The LM-1 also inspired the creation of the Oberheim DMX , which became a staple in the emerging hip-hop scene. The DMX’s punchy drum sounds and rugged build made it a favorite for producers looking to create hard-hitting beats.

The Roland TR-808 (1980)

In 1980, Roland also released the TR-808 Drum Machine , which would go on to become one of the most influential drum machines of all time. Unlike the LM-1, the TR-808 was completely analog, which gave it a distinctive, warm, and punchy sound.

However, when it was first released, it was a commercial failure. Musicians didn’t quite understand the unique sound of the TR-808, and it wasn’t initially embraced in the way Roland had hoped.

However, over the next few years, the TR-808 found its place in the music world, particularly in hip-hop, electro, and early dance music. You can hear it in some of the most iconic tracks of the 80s, like Afrika Bambaataa’s “Planet Rock” and Kraftwerk’s “Computer World."

The Roland TR-909 (1983)

In 1983, Roland released the TR-909 , a follow-up to the 808 that included a revolutionary new feature: MIDI .

The TR-909 was the first drum machine to incorporate MIDI (Musical Instrument Digital Interface), which allowed it to communicate with other MIDI-equipped devices, making it a key tool for music producers during the rise of techno and house music.

The TR-909’s distinctive sound and MIDI functionality made a significant impact in the development of house, EDM, and other staples of electronic music. To this day, it's still one of the most popular drum machines.

The 2010s Analog Synth Revival

Fast forward to the 2010s, and there was a resurgence of interest in analog synths and drum machines, much of which was driven by nostalgia for the old days and a renewed appreciation for the warmth of analog.

Companies like Korg and Arturia reintroduced analog drum machines like the Volca Beats and DrumBrute , while Dave Smith Instruments introduced the Tempest , a higher-end, modern analog drum machine that combined digital control with analog sound generation.

The Components of a Typical Drum Machine

So, the real question is, how in the world do these things work?

It's an interesting thought, as drum machines have evolved greatly over the years. No two are exactly the same! However, that doesn't mean we can't get an understanding of their basic components.

Sound Engine

The main part of any drum machine is its sound engine .

Most drum machines produce sounds in one of two primary ways: analog synthesis or digital sampling.

Analog synthesis was used in early drum machines like the Roland TR-808. These systems used oscillators, filters, and modulators to create drum sounds from scratch. In terms of timbre, this kind of synthesis usually imparts a warm, characteristic tone, one that's become iconic in hip-hop and dance music.

Digital sampling , on the other hand, involves recording real drum sounds and playing them back. While not as "warm," machines like the LinnDrum, which utilized this approach, offered a more realistic representation of percussion by using actual drum sounds. Some modern drum machines combine both methods, providing the best of both worlds.

Sequencer

The sequencer is another important component used in drum machines to program rhythms.

These typically work with a step sequencer , where each step in the grid corresponds to a subdivision of time, allowing you to place sounds precisely in the rhythm.

With this setup, you can build intricate drum patterns and loops, much like putting together a puzzle.

More advanced sequencers may offer features like pattern memory , which stores multiple drum patterns that can be triggered during a performance, and song mode , which lets you chain those patterns together to form full compositions.

You may even find sequencers that offer creative options like swing, flam, and humanize, which help add groove and variation.

Connectivity

Connectivity options are also an important part of a drum machine’s functionality. These will inform you of what kinds of equipment your unit can connect to.

MIDI ins and outs are pretty common, and they allow you to communicate between the drum machine and other MIDI-enabled devices, such as synthesizers, sequencers, and computers.

You'll also likely find audio outputs, which provide connections to mixers, amplifiers, or recording devices, while USB ports (found on more modern devices) allow for data transfer and synchronization with DAWs.

Other drum machine models support CV/Gate outputs, which makes them compatible with modular synthesizer setups.

User Interface

The user interface is the part of the drum machine that you interact with.

It typically includes pads or buttons that you use to trigger sounds in real-time or program sequences. Many manufacturers make these touch-sensitive so you can play dynamically.

You'll also likely find knobs and sliders, which give you control over various other sound parameters, such as pitch, decay, and modulation.

Final Thoughts

Drum machines have been a part of music production for decades, and it's hard to overstate the influence they've had on the music industry.

From their early beginnings with mechanical devices like the Rhythmicon to the first fully transistorized models in the 1960s, drum machines have continued to shape the sound of electronic music and beyond.

Today, these electronic musical instruments offer a fun way for producers working in electronic genres, pop music, or hip-hop, to create beats, produce unique sounds, and enjoy the tangible aspect of physical drum machines.

If you're an electronic musician working without a drummer, I highly recommend exploring what these pieces of gear have to offer!

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