Explore a fascinating experiment combining music and code in this 47-minute conference talk from Devoxx. Discover how a father-son duo created the MelodyMatrix application, blending Kotlin, JavaFX, MIDI, and Virtual Threads to visualize music in innovative ways. Learn about presenting music pieces through business dashboards and charts, and see how the FXGL game library can generate a piano with fireworks. Witness a unique live piano performance by a 14-year-old musician-coder and experience a battle between human and machine piano playing. Delve into the technical aspects of pushing app performance to control LED strips reacting to music. Gain insights into various technologies including Kotlin, Java, JavaFX, Gradle, FXGL, MIDI, Vaadin, GitHub Actions, and JDeploy as you follow the journey of a small experiment evolving into a full-fledged project.