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School of Music

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    Crowd in C[loud] : Audience Participation Music with Online Dating Metaphor using Cloud Service
    (Georgia Institute of Technology, 2016-04) Lee, Sang Won ; de Carvalho, Antonio Deusany Jr. ; Essl, Georg
    In this paper, we introduce Crowd in C[loud], a networked music piece designed for audience participation at a music concert. We developed a networked musical instrument for the web browser where a casual smartphone user can play music as well as interact with other audience members. A participant composes a short tune with five notes and serving as a personal profile picture of each individual through- out the piece. The notion of musical profiles is used to form a social network that mimics an online-dating website. People browse the profiles of others, choose someone they like, and initiate interaction online and offline. We utilize a cloud service that helps build, without a server-side programming, a large-scale networked music ensemble on the web. This paper introduces the design choices for this distributed musical instrument. It describes details on how the crowd is orchestrated through the cloud service. We discuss how it facilitates mingling with one another. Finally we show how live coding is incorporated while maintaining the coherence of the piece. From rehearsal to actual performance, the crowd takes part in the process of producing the piece.
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    Hooking up Web Audio to WebGL Typography
    (Georgia Institute of Technology, 2016-04) Lee, Sang Won ; Essl, Georg
    This demo introduces programmable text rendering that enables temporal typography in web browsers. Textual interaction is seen not only as a dynamic but interactive process facilitating both scripted and live musical expression in various contexts such as audio-visual performance using keyboards and live coding visualization. We transform plain text into a highly audiovisual medium and a musical interface which is visually expressive by transforming textual properties using real-time web audio signal. Technical realization of the concept uses Web Audio API, WebGL and GLSL shaders. We show a number of examples that illustrate instances of the concept in various scenarios ranging from simple textual visualization, live coding environments and interactive writing platform.
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    Crowd in C[loud]
    (Georgia Institute of Technology, 2016-04) Lee, Sang Won ; de Carvalho, Antonio Deusany Jr. ; Essl, Georg
    Crowd in C[loud] is an audience participation music piece played on a distributed musical instrument. Inspired by Terry Riley's “In C”, audience members play a short tunes composed by themselves on their smartphones. The collective outcome of the ensemble creates a heterophonic texture of chance, largely in C chord. The instrument mimics an online dating website in which a user browses personal profiles, likes someone, and mingle with other online users. Participants are guided to play music together and to interact with other audience members in this temporary social network. A performer can actively progress the music by orchestrating the crowd by live coding on the console of the web browser.
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    Live Writing: Shatter
    (Georgia Institute of Technology, 2016-04) Lee, Sang Won ; Martinez, Mari ; Essl, Georg ; Pain
    Live Writing: Shatter utilizes an audiovisual performance developed for a web browser. Here, every keystroke made on a laptop to write a piece of creative writing is captured and precessed to established natural links among typing gestures, text written, and audiovisual responses. The piece is built upon a poem written by Martinez about fragments of memories left by unspoken words. The performance capitalizes on temporal typography built on a web browser using Web Audio API, and Web Graphics Library, offering unique text animation sculpted with live audio to the audience.
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    Audience participation using mobile phones as musical instruments
    (Georgia Institute of Technology, 2012-05-21) Lee, Sang Won
    This research aims at a music piece for audience participation using mobile phones as musical instruments in a music concert setting. Inspired by the ubiquity of smart phones, I attempted to accomplish audience engagement in a music performance by crafting an accessible musical instrument with which audience can be a part of the performance. The research begins by reviewing the related works in two areas, mobile music and audience participation at music performances, builds a charted map of the areas and its intersection to seek an innovation, and defines requisites for a successful audience participation where audience can participate in music making as musicians with their mobile phones. To make accessible audience participation, the concept of a networked multi-user instrument is applied for the system. With the lessons learnt, I developed echobo, a mobile musical instrument application for iOS devices (iPhone, iPad and iPod Touch). With this system, audience can download the app at the concert, play the instrument instantly, interact with other audience members, and contribute to the music by sound generated from their mobile phones. A music piece for echobo and a clarinet was presented in a series of performances and the application was found to work reliably and accomplish audience engagement. The post-survey results indicate that the system was accessible, and helped the audience to connect to the music and other musicians.