OnSight Music wins Rep. Daniel Goldman’s Congressional App Challenge in New York’s 10th District
Rep. Daniel Goldman has named Troye Kim of Stuyvesant High School as the winner of the 2025 Congressional App Challenge in New York’s 10th District. Their app OnSight Music allows users to convert midi files into sheet music, and then enables them to sing against the sheet music, pointing out errors along the way.
When asked what inspired the creation of OnSight Music, Troye Kim said, “Learning music efficiently has been a major unresolved problem within the entire vocal music community, and especially in choruses where if even one person sings the wrong note, the entire group sounds flawed as a collective. OnSight Music has been built upon the wish that we would have a tool to help us study any vocal sheet music so that we can be fully prepared at our next chorus rehearsal with half the effort. This wish was initially introduced in a very casual conversation with my Stuyvesant Chorus conductor, Ms. Shamazov. She expressed that it would be great if there was something that can help her students learn the music faster and more efficiently, as only a selected few can sing just by looking at a sheet music. Problem is, she couldn’t find anything that fits her specific needs online. Then, I proposed the idea that I would try to code a program myself that ticks all the boxes needed to efficiently learn sheet music for things like chorus and vocal solos.”
The 2025 Congressional App Challenge marked another record-setting year for the program. A total of 394 Members of the U.S. House of Representatives hosted App Challenges in their congressional districts, the highest level of participation in the program’s history. More than 13,800 students from across the country participated, submitting over 4,600 original apps focused on real-world challenges ranging from health and accessibility to education, sustainability, and civic engagement.
The Congressional App Challenge is an official initiative of the U.S. House of Representatives that encourages middle school and high school students to learn to code, explore computer science, and build practical technology solutions for their communities. Each participating Member of Congress selects a winning app from their district, and winning teams are invited to showcase their projects to Members of Congress, staff, and industry leaders at the annual #HouseOfCode celebration on Capitol Hill.
The Challenge is proudly bipartisan and reflects a shared commitment to expanding access to STEM education and preparing the next generation of American innovators for the future workforce. The program is a public-private partnership made possible through funding from the Broadcom Foundation, AWS, Infosys Foundation USA, theCoderSchool, Apple, and others.
The 2026 Congressional App Challenge will launch in May, and eligible students can pre-register for the competition now.