Most musical instruments arrive with instructions written by history. Sit at a piano and more than three centuries of music tells you what a piano is supposed to do. Pick up a violin and an even longer tradition sits beneath your fingers. The instrument may be capable of new sounds, but generations of musicians have already established its vocabulary.

Electronic music offered something different.

By the middle of the twentieth century, composers had access to oscillators, tape machines, filters and other electronic equipment capable of producing sounds that had little connection with traditional instruments. The possibilities seemed enormous, but there was a problem. Nobody really knew what the instrument was yet.

Morton Subotnick became one of a small group of composers who decided that this uncertainty wasn't a problem at all. It was the opportunity.

 

A Clarinet Player in a Changing World

Subotnick was born in Los Angeles in 1933 and began his musical life far from the blinking lights and tangled cables with which his name would later become associated. His instrument was the clarinet.

He studied at the University of Denver and later Mills College, where he worked with composers including Darius Milhaud and Leon Kirchner. He played professionally and served as a clarinettist with the Denver Symphony Orchestra. In other words, Subotnick understood conventional musical training perfectly well.

But the musical world around him was changing. During the 1950s and early 1960s, composers were increasingly exploring sound beyond conventional instruments. Magnetic tape allowed recordings to be cut, reversed, slowed down and rearranged. Electronic oscillators could generate tones without strings, reeds or vibrating columns of air. Studios in Europe and America were beginning to treat electronic sound as compositional material in its own right.

For a young composer, this raised an intriguing possibility. Perhaps electronic music didn't need to inherit the assumptions of traditional music at all. Perhaps it could develop its own language.

 

A Room for Experiments

In the late 1950s Subotnick moved to San Francisco, where he became part of a remarkably fertile experimental arts community. Together with composer Ramon Sender, he helped establish what became the San Francisco Tape Music Center.

The name makes it sound rather more institutional than it initially was. It was essentially a place where composers, artists and performers could experiment with technologies and ideas that conventional concert halls, universities and recording studios were not necessarily equipped to accommodate.

Pauline Oliveros became closely involved. So did composers including Terry Riley. Performers, visual artists and experimental theatre makers moved through the same environment.

Tape machines were central. A recorded sound could be cut apart, rearranged, reversed, repeated or transformed. A composer was no longer limited to writing instructions for musicians. The sound itself could become the material of composition.

But tape had its frustrations. Working with it could be painstaking. Creating a piece often meant physically cutting and joining sections of magnetic tape, measuring durations by length and building complex passages one edit at a time. Electronic sound offered extraordinary possibilities, but making it could feel less like playing an instrument and more like assembling one frame by frame.

Subotnick wanted something more immediate. He wanted to compose with electronics in real time.

 

Meeting Don Buchla

The Tape Music Center needed equipment. What it didn't need, Subotnick believed, was another electronic instrument designed around the assumptions of the piano.

This was an important distinction. Early electronic instruments frequently retained a conventional keyboard because it provided musicians with a familiar way to control unfamiliar sounds. But a keyboard also brought centuries of musical assumptions with it: twelve notes to the octave, scales, chords, melody and equal temperament.

If electronic music was genuinely a new medium, why should its principal interface immediately steer the composer back towards old ones?

Subotnick and Sender approached an engineer named Don Buchla. Their request was unusual. They didn't simply ask Buchla to build a synthesizer. They began discussing what an electronic music system should actually allow a composer to do.

The resulting instrument became the Buchla 100 series modular electronic music system. Instead of a conventional piano keyboard, Buchla's system used touch-sensitive plates, knobs, switches, sequencers and patch cables. Sound could be controlled through voltage, allowing pitch, timbre, rhythm and movement to interact in ways that were difficult to achieve with conventional instruments.

This wasn't merely a new source of sounds. It encouraged a different way of thinking about composition.

Patterns could control other patterns. Voltages could determine pitch, duration or timbre. Events could be organised into sequences and then altered while they were running. The composer could establish relationships within the system and listen as those relationships unfolded.

Buchla built the machine, but the ideas behind it emerged from a conversation between engineering and composition. Subotnick was helping define what he wanted an electronic instrument to be before such an instrument had a settled definition.

 

An Instrument Without a Keyboard

The absence of a conventional keyboard has become one of the most famous philosophical differences between early Buchla and Moog synthesizers. It can also be overstated.

Robert Moog and Don Buchla were not simply standing on opposite sides of a battle over whether synthesizers should have keyboards. Both were responding to different musicians, different environments and different ideas about how electronic instruments might be used.

But Subotnick's influence on the Buchla approach is revealing. He wasn't looking for an electronic replacement for an orchestra. He wanted a system for composing electronic sound.

That meant thinking beyond notes. A sound could evolve gradually. A sequence could repeat while changing internally. Rhythm could emerge from interacting control voltages. Timbre could become part of the structure of a composition rather than something applied afterwards.

The machine could be configured to create behaviour. That idea would become enormously important to electronic music.

Instead of specifying every individual event, a composer could create a system in which events influenced one another. Composition could become partly about designing the conditions under which sound happened.

 

Leaving the Tape Behind

There is a beautiful contradiction in the story of the San Francisco Tape Music Center. It helped Subotnick discover electronic composition, then he began trying to escape the tape.

Tape had made it possible to treat recorded sound as material, but Subotnick increasingly wanted the immediacy of an instrument. He wanted to shape electronic sound as it happened rather than spend hours physically assembling it afterwards.

The Buchla system offered that possibility. Electronic music could now be performed into existence. Not necessarily performed in the traditional sense of reproducing a score before an audience, but created through continuous interaction with a system.

Turn a control and the relationship changes. Alter a voltage and the rhythm shifts. Reconnect a patch cable and one part of the system begins influencing another. The composer was no longer simply writing instructions for performers, nor was he merely editing recordings. He was interacting with behaviour.

 

A Record That Was the Performance

In the mid-1960s Subotnick moved to New York and became involved with the newly established Tisch School of the Arts at New York University. There he continued working with a Buchla system.

Then came an unusual proposition. Nonesuch Records, a label known for adventurous releases, commissioned Subotnick to create a work specifically for the LP format. The result, released in 1967, was Silver Apples of the Moon.

Its importance lies partly in the music and partly in the circumstances of its creation. Electronic music had often reached listeners as documentation. A composition might originate in an academic studio, exist as a tape work or be associated with a concert performance.

Silver Apples of the Moon was conceived for the record itself. There did not need to be an orchestra capable of performing it, a score that another musician could reproduce or even a definitive live performance.

The recording wasn't evidence that the music had happened somewhere else. The recording was where the music happened.

That idea now seems completely ordinary. Huge areas of modern music exist primarily as recordings. Producers construct pieces in studios that were never performed from beginning to end. Electronic musicians create arrangements that may be impossible for a conventional ensemble to reproduce. Listeners encounter the finished recording as the work itself.

In 1967, the distinction mattered considerably more. The LP had become a compositional medium.

 

Silver Apples of the Moon

The title came from a poem by W. B. Yeats, but the sounds inside the record seemed to belong to somewhere much less familiar.

There are no conventional instruments to provide reassurance. Electronic pulses accelerate and disappear. Tones bend and collide. Rhythmic patterns emerge, destabilise and reorganise themselves. Sounds appear that resist easy description because there was no established instrumental vocabulary for producing them.

It is tempting, listening decades later, to hear the beginnings of later electronic genres in the record. There are passages that suggest sequencing, techno, abstract electronica or modular improvisation, but that can be misleading.

Subotnick wasn't anticipating those genres in any deliberate sense. They didn't exist. What makes the record interesting is precisely that he was working without those reference points.

There was no established language of modular electronic music to imitate. The vocabulary was being discovered while the composition was being made.

The Buchla system encouraged this process. Its sequencers allowed patterns to repeat, but repetition didn't necessarily mean stability. Voltages could change other parameters and small adjustments could produce dramatic transformations. The machine wasn't simply generating tones. It was creating relationships between events, and Subotnick was composing those relationships.

 

Music Without a Score

Traditional Western composition had long been associated with notation. A composer wrote a score, performers interpreted it and an audience heard the result.

Electronic music complicated that chain. How do you notate the exact movement of a filter? How do you write down a patch whose behaviour depends on several interacting control voltages? How do you reproduce a sound created through a particular combination of modules, settings and gestures?

More importantly, why should you?

For Subotnick, electronic composition increasingly existed in the interaction between composer and system. The studio became both instrument and performance environment.

This did not mean abandoning composition. Quite the opposite. It expanded what composition could mean. Instead of organising only notes and durations, the composer could organise processes, timbres, behaviours and probabilities. A piece could contain systems that were designed rather than passages that were simply written.

The distinction would become increasingly familiar as electronic music developed. Sequencers, modular synthesizers, generative systems and eventually software environments would all allow musicians to create rules and relationships rather than specify every musical event individually.

The composer could decide what the system was allowed to do, then listen to what happened.

 

After the Silver Apples

Silver Apples of the Moon was followed in 1968 by The Wild Bull, another work created with the Buchla.

Subotnick continued exploring electronic composition throughout the following decades, but it would be misleading to freeze him permanently in the late 1960s beside a Buchla 100. His interests moved with the technology.

As electronic instruments became more sophisticated, he explored ways of combining live performance with electronic processing. Later works incorporated traditional instruments whose sound could be transformed electronically during performance.

This represented another shift in the relationship between musician and machine. The early question had been how electronic music might exist independently of traditional instruments. Later, Subotnick became increasingly interested in interaction.

Electronics did not necessarily have to replace the performer. They could listen and respond. A musician could play an acoustic instrument and the electronic system could transform the resulting sound in real time. Performance and processing could become parts of the same expressive gesture. So the technology had changed, but the underlying curiosity had not.

 

The Ghost Score

One of Subotnick's important later developments was what he called the "ghost score", which explored this relationship further.

The idea was to create electronic processing systems whose behaviour could be controlled during live instrumental performance. Instead of accompanying a fixed tape, the performer could interact with electronic transformations.

Pitch, dynamics and other aspects of the live performance could influence processing, allowing the electronic component to behave less like playback and more like another responsive layer of the composition.

This was a significant conceptual development. The tape machine had allowed composers to manipulate sound after it was recorded. The modular synthesizer had allowed Subotnick to compose electronic sound directly. Interactive electronics now allowed the behaviour of a live musician to influence what the electronics did.

The relationship had become circular. Human gesture affected the machine, the machine transformed the gesture and the musician responded to the result.

Electronic music was becoming less about controlling technology and more about communicating with it.

 

Teaching People to Listen Differently

Subotnick's influence also extended beyond his own recordings. He taught for decades and became closely associated with the California Institute of the Arts, where experimentation across music, performance and technology formed part of the institution's culture.

His educational interests eventually reached much younger audiences too. He became involved in projects designed to introduce children to musical creativity through interactive technology, including the Making Music software series.

There is something wonderfully consistent about that. The young composer who had questioned why an electronic instrument should inherit the rules of a piano later became interested in giving children musical environments where exploration could come before formal technique.

The question was still not simply whether you could play an instrument correctly. It was: what happens if you do this?

 

The Instrument That Didn't Exist

Subotnick's story sits at an interesting junction in electronic music history.

He didn't invent the synthesizer, build the Buchla modules bearing Don Buchla's name or invent tape music, sequencing or interactive electronics. His contribution is more difficult to reduce to a single object.

He was one of the people asking the questions that helped those objects acquire meaning.

What should an electronic instrument allow a composer to do? Why should it have a keyboard? Why should electronic music reproduce the structures of existing music? What happens when a sequence controls something other than pitch? What happens when the recording itself becomes the composition? What happens when electronics respond to a human performer rather than simply accompany one?

These questions now sit quietly inside much of electronic music.

A modular musician creating a self-changing patch is exploring relationships between processes. A producer constructing a piece entirely inside a studio is making a recording that is the work rather than documentation of it. A musician mapping controllers to software is deciding how physical gestures should interact with electronic processes. A generative artist establishes rules and then listens to their consequences.

None of these practices belongs to Subotnick alone, but he was asking remarkably similar questions when electronic music still had very few answers.

 

Legacy

There is a temptation when writing about pioneers to make history look inevitable. Someone invents something, someone else improves it and eventually we arrive at the technology we have today.

Electronic music didn't develop like that. It was messier, more collaborative and considerably more interesting.

Subotnick's work grew from a particular moment when composers, artists and engineers found themselves surrounded by technologies whose musical purpose had not yet been decided. Tape could record sound, but perhaps it could also become compositional material. Voltage could control electronic circuits, but perhaps it could also organise music. A record could reproduce a performance, but perhaps the record itself could be the performance. A synthesizer could imitate an instrument, but perhaps it could become something for which there was no previous comparison.

The remarkable thing about Morton Subotnick is not that he knew where electronic music was heading. Nobody did. It is that he recognised the value of not knowing.

When an instrument has no established tradition, there is no correct way to play it. When a musical language hasn't been written, there are no rules to break. There are simply possibilities to explore. Morton Subotnick wasn't trying to predict the future of electronic music. He was composing music that didn't exist yet.