Category Archives: Performances

Learning Aphasia

Influences, Performances, Research, Teaching

Mark Applebaum’s Aphasia (2009) for solo performer is a difficult but rewarding piece. I have been intermittently practicing it since 2021, but I have yet to reach a satisfactory level. Knowing that my run of the piece today is better than in any other day, it gives me joy and energy to keep practicing. I wanted to share that delight in the last month’s Wayne State Faculty Recital Series. Despite many mistakes, the performance was received well by students and guests. Aphasia attracts and affects audiences and performers like no other electronic pieces I know. I can think of two, perhaps very personal, reasons.

Soulslike 

Aphasia is an Elden Ring-equivalent of electroacoustic music. The unforgiving difficulty is part of the fun. In practicing Aphasia, I had innumerable  “YOU DIED” moments. Learning small sections required focus and discipline, and still, the chance of succeeding was slim. But like a soulslike game, the process of achieving goals was fun. I understood more about the piece’s structural relationships, sound design techniques, and choreographic thoughts through repeated readings, listening, and failing. 

When I memorized the piece, I felt joy, similar to the moment I beat the final boss in Elden Ring after hundreds of hours of playtime. I learned to work consistently to achieve seemingly impossible goals. Musicians, of course, acquire this trait, but I needed a reminder and reinforcement.  Practicing Aphasia during the COVID quarantine semesters did that job. 

The audience watching Aphasia immediately gets its pleasant-but-difficult aspect. It’s fun but serious. It’s confusing, but there’s the order. And it’s inviting – instead of “I can’t do what I see on stage,” the audience may feel “I want to try it one day.” Aphasia seems to be an excellent introduction to studying the performance aspect of electronic music. Once a person has experience of doing Aphasia, watching the performance has a new meaning. It’s like watching a PVP match when knowing the mechanics and insights of a video game.   

Notation

Aphasia is a fully-notated piece composed in 2009. Hundreds of performers, mainly percussionists, played it in the 2010s. In contrast to many graphic notations,  the score is not to be freely interpreted. There is a clear notion of a mistake when the performer misses the timing or makes a wrong hand gesture. This aesthetics contrasts with my solo performance practice in the 2010’s, in which I freely improvised on stage with found objects, MIDI controllers, and found objects. The improvisatory nature of my performance made the audience expect the unexpected at the expense of irreplicability – I was the only person who could perform my solo electroacoustic works. In the composer of Aphasia’s words, I was the best and the worst performer of my piece.  

While only the improviser could perform their pieces, hundreds of percussionists performed Aphasia as the composer intended. Aphasia’s technology barrier is low, and the piece is a hit in every concert. When done correctly, the piece is indistinguishable from many high-tech compositions using motion sensors or controllers. Performers can make such an experience by studying notation, like many other pieces that they have studied previously. 

Aphasia taught me the effectiveness of low technology and low dependence on improvisational skill. With well-written notation, such a composition travels far, invites more performers, and lasts long. Many mixed pieces (i.e., those with an instrument and prerecorded electronics) have the same strength, but Aphasia stands out by featuring the most accessible instrument. My recent electronic ensemble pieces reflect this approach. They are built to be transferable, non-virtuostic,  and have low technological/financial barriers. 

Summary

Aphasia reinforces the music fundamentals I often forget – practicing and overcoming challenges is an essential part of musicianship, and great notation makes performers change and improve. I forgot these, perhaps as a byproduct of pursuing the new and the cutting-edge as a profession. 

Learning Aphasia also rekindled my role as a student. To create and teach, I need to study and practice. Consistently and continuously. The result of doing so does not have to be perfect, but sharing and explaining what I experienced is what teacher-artists do. Knowing me, I will probably forget the lessons. When that happens, I will relearn Aphasia (and/or play Elden Ring) to remember it again.

Breathing Land (2025)

Collaborators, Compositions, Performances

I wrote music for Breathing Land, a dance film published in 2025. It is now available to watch online.

I worked with talented choreographers and dancers of Artlab J. I also worked with filmmaker Dae Won Kim. Detailed credit is found in Artlab J’s Instagram post.

The choreography and the movie are amazing. I am happy to work with such talented artists. Musically speaking, there are some experimental moments I liked quite a bit. There are some parts where I featured no-input mixer sounds for certain emotions and messages. I am also satisfied with the climactic buildup at the end.

Solo Electronic Improvisation

Computer Music Practice, Performances, Research, ,

Since 2009, I have been presenting a solo set of live electronic music. Among the many electronic performance techniques, I specialize in creating electronic sounds on stage without pre-recorded samples. I use a combination of digital effect processors coded with SuperCollider to improvise a uniquely electronic soundscape in concerts and recordings. For more than a decade, I have marketed myself as an expert in that specific style. It is represented as a yellow rectangle in the diagram below. 

The categorization is not meaningful to anyone else, but it was a useful research goal for me in the 2010s. I share three representative pieces of my solo electronic improvisation for listening and analysis purposes.

Three Examples 

100 Strange Sounds (2012-2014) is a set of one hundred short video recordings featuring my live electronic music techniques. Each piece pairs a sound-making object with my SuperCollider code that processes its sound. I invite viewers to notice and enjoy the unexpected relationship between what they see and what they hear. For example, the sound of a cabbage becomes something else with a bunch of effect processors in 100 Strange Sounds #77. 

Large Intestine (2013) is a piece I made after 100 Strange Sounds #42. As described in the blog on style analysis, the no-input mixer improvisation enhanced with SuperCollider has been my favorite electronic instrument for more than a decade. Large Intestine, as the title suggests, epitomizes my interest in noise, digital signal processing, and improvisation. I plan to play this work in as many concerts as possible in the future.

Touch (2014) is my kitchen-sink piece that pairs multiple sound objects with multiple effects. It’s a summary of 100 Strange Sounds, in which I bring random objects on stage and improvise the combination and sequence of sounds. The piece opened many doors to career opportunities in the 2010s as an electronic music improviser. The techniques and technologies I learned in performing and refining Touch became a source for future non-improvisational compositions for electronic ensembles. 

Technology

All three pieces mentioned above use a variation of a single SuperCollider patch, available for download at this link. And this linked PDF explains the hardware and software setup to perform the pieces (warning: it is a little outdated). 

When I run the patch, it creates a GUI with multiple buttons that trigger customized effects. I control the number and timing of the effects’ on/off states with a mouse click – No MIDI controllers or control surfaces. A few clicks, probably unnoticed by the audience, are enough because I wanted the listeners to focus on the interaction I have with the non-electronic objects on the stage. 

As for the hardware,  I use a couple of microphones for Touch, one audio interface, and a laptop. This article explains the gear I used over the past 11 years.

Technique

Like other improvisations, the key technique in performing solo live electronic music is listening. I listen for variations that the computer part adds to the acoustic instruments, then respond with another instrument or effects. Because I cannot play a scale or harmony with the instrument (like cabbage), the listen-and-react decisions are often non-musical and raw. “The current sound is long, so I’ll play short sounds next.” “I will go from a simple to a complex texture.”  “The sound is very high in pitch. I’ll complement it with a very low rumble.” I also ask questions and try to come up with the best answer on stage. “What happens if I granularize the chattering teeth sound?” “The plastic block sounds harsh. Can I make it harsher?” “What is common between a slinky and a coin sound?”  

Free improvisation focusing on reactions and questions is fun, but it can quickly lose control of the length and form. So I plan a specific gesture or sound combination for transitions. The Extension and Connection blog linked earlier has such an example in Touch.  

Annecdote

More than fifteen years of experience in improvising with live electronics forms the foundation of my musicianship. I identified myself as a composer after earning a PhD in composition in 2008, but it did not lead to a gig or collaborations when I moved to Philadelphia for my first job as a music technology professor. The dire situation led me to develop a solo set I can prepare and present quickly in any situation. The strategic change, fortunately, worked, giving me ample opportunity to refine my performance and improvisation techniques. 

These days, I am comfortable identifying myself as a composer-performer of electronic music. My sound may not be fresh or cutting-edge at this point, but I think I have a bit more to contribute to the current solo setup. Perhaps the contribution is a documentation and theorization. Perhaps it is just one more new piece!

More electronic music composition/performance/practice articles are found at the Computer Music Practice project.

Sans Trou Ni Fin (2025)

Collaborators, Compositions, Performances,

Sans Trou Ni Fin (without hole or end) is a collaborative work with Biba Bell. It was premiered on June 26th, 2025, as a site-specific movement piece. I made the music and designed the playback system. The show was about 45 minutes and had a total of four performances on June 26th and 27th, 2025.   

Form 

The show has six dancers, one reader, and a Detroit house with a remarkable design. Biba’s program notes below describe the experiences of audience members during the show. 

Sound Design and Composition

I visited the site a few months before the premiere, took notes and photos, and composed music. I made three different but correlated 10-minute pieces that will be played simultaneously on three sides of the center garden. I have also added a fourth sound that will be played back from a portable speaker. During the performance, a dancer walked with the portable speaker and visited the three sites. 

Below is a diagram showing a customized playback system for the show. It consists of three portable speakers, one subwoofer, a multi-channel audio interface, and a PC running Ableton Live. 

The tracks in the soundtrack album match the labels in the diagram.

The three places, the Library, Living Room, and Kitchen, each have their own music (tracks 3, 4, and 5), and Traveler intermittently visits them with a fourth sound (track 6, an abbreviated version of the original 30-minute file). The first track, named Sans Trou Ni Fin – Part I, is a simulation of all of the sounds playing together. Sans Trou Ni Fin – Part II is played at the last 10 minutes of the piece, where all dancers gather in the center garden. The windows to the garden are open for the last movement, allowing sound to travel with fewer obstructions. Part II also uses a subwoofer to add a low-frequency thump. During the shows, I was cueing the sound from a storage room, doors closed and hidden from the audience. 

The composition process consists of combining new and old techniques. SuperCollider codes used in End Credits, Save Point By The Lake, Tree Breezes, and Hold Drum became the starting points for the pieces. I edited the codes so that the resulting sounds are in the same key, tempo, and duration. For the ending, I added a slow version of Mellotron 7. During the rehearsal, the team wanted a 60-second-long transition sound to be played while the audience moved to another room. I quickly assembled the transition sound with a drone from Living Room. I did not upload the transition music.  

Remarks

Sans Trou Ni Fin was a second collaboration with Biba (info about the first collaboration is here). Biba brings out the beauty of the immobile space with the mobile human bodies. Her work has the best “here-and-now” experience a live performance can create.  And the performers, Hunter, Ta’Rajee, Matthew, Elizabeth, Aaron, and Chris, delivered it with 200%. I am grateful to work with the crew. 

Update 11/25/2025

One of the artists, Matthew Piper, wrote a beautiful article about the performance. Read about it here!

https://www.matthewjpiper.com/post/haunting-the-house-notes-on-dance-and-space

As for the documentation, the two performances are now available on Vimeo

Computer Music Practice – Presenting

Computer Music Practice, Performances, Research, ,

Finishing a composition means the beginning of other work. Posting the audio files on the web is the first step in sharing my music, but it is not the only way to showcase the piece’s best aspects. Music for human performers is meant to be experienced in live concerts. Some generative music’s value is in creating and hearing multiple versions. As an electronic music researcher and teacher, presenting the algorithms, codes, and other relevant findings may be as important as sharing the music.

I do the above to present my work to reach a wider audience. In the Presenting section of Computer Music Practice, I provide more concrete examples of my efforts to do so. Electroacoustic performers interested in promoting their works, as well as curators interested in adding electronic music to their events, may benefit from reading the articles in this section.

  • Solo Performance: Solo performances account for the largest portion of my stage appearances. Performing solo electronic music needs specific preparations. The practice of preparing and presenting electroacoustic solo works changes over time, and I share a record of these changes spanning more than a decade. 
  • Electronic Ensemble: Practice and presentation methods for electronic ensembles vary widely, and there are few records about them. Proper documentation of the creative process helps the evaluation of the genre.  I share my approach to running an electronic ensemble so that those interested can use it as a reference.
  • Tools: Some of my pieces are written as a demo of computer music techniques. Those compositions feature research that could be applied to other people’s works. The articles in this section introduce tools and technologies that can be used and modified. Please credit the creator if sounds and codes made with the tools provided here are applied to a piece.  
  • Workshops: I enjoy providing opportunities to learn about tips and techniques of electronic music production and performance. I share teaching materials for in-person or virtual workshops on electronic ensemble and SuperCollider.

Live electroacoustic music, the genre of music in which I excel, is not well-known. It has relatively little historical context and resources for evaluation, or I am asking people I don’t know to attend a concert where they may not see the relationship between the performer’s actions and the sound. One way to mitigate this inherent challenge is to provide as many opportunities as possible to listen, create, and play electronic music. It requires more effort, such as running workshops and sharing tools. The entries in the Presenting section are my version of such efforts. 

Computer Music Practice (CMP) is an interactive and personal example of computer musicianship. Click each entry in the chart to read and listen to Joo Won Park’s computer music research.