Music thrives not only above ground but also in subterranean spaces. In recent years, street performances and busking have become defining characteristics of urban environments, playing a crucial yet often undervalued role in shaping cityscapes. As Adam Jonathan notes in Street Music, City Rhythms: The Urban Soundscape as Heard by Street Musicians, "Street music – a conscious deliberate propagation of sound in public space – opens an entryway into comprehending the role of sound in the city, and what it reveals about the city’s inhabitants".

​

Drawing from this concept, the SoUnder project (short for "sound under") was developed. SoUnder is an interactive mobile app primarily targeting street performers, offering a platform for showcasing their work and inviting users to meet these artists at various subway stations throughout New York City. This project explores the relationship between street performers and one of the world's most renowned metropolises, New York, while also examining the internet as an online public space, and how it can foster mutual growth and exposure between performers and the city.