音楽共有における社会的アクセシビリティ：ファンの発信欲求と社会的配慮を両立するインタフェース設計

抄録

This study focuses on the challenge of “social barriers” that arise when music fans’ strong desire to “share their favorite music with others” conflicts with social norms, examined from the perspective of social accessibility. To resolve this dilemma, we propose Music Leak2 that shares music information through wireless signals rather than sound waves. This system represents an inclusive interface that aims to balance senders’ expression desires with others’ rights to seek tranquility by completely delegating discretionary control to receivers. To validate the effectiveness of this system, we conducted an experiential interview study with an enthusiastic fan (N=1). Qualitative analysis revealed that while the system can technically provide an environment where “only those who want to listen can hear, and those who don’t want to listen don’t have to”, this alone is insufficient to completely eliminate the strong psychological barriers that senders experience regarding “potentially bothering others.” The participant suggested that without “reassurance” that their actions are being accepted, such as visualization of receivers’ situations, they would not engage in active transmission behaviors. Furthermore, the access barrier identified was not ”evangelism itself” but ”the opportunity to connect with fellow fans in everyday spaces through musical expression.” Conventional social norms restricted transmission, which also prevented reception and confirmation of nearby fellow fans’ presence, revealing a dual access barrier structure. The system’s value lies in creating opportunities for both encountering and confirming fellow fans through mutual transmission and reception, rather than evangelism to unspecified masses.