LB Omnichord

The LB Omnichord functions as a digital electronic instrument by combining tactile user interfaces with software-based audio synthesis running on a Raspberry Pi 5. The physical system is housed in a custom 3D printed enclosure made from glow-in-the-dark PLA, integrated with ultraviolet LEDs to illuminate the structural elements. User interaction is captured primarily through the connected touchscreen, which acts as the control surface for selecting notes, chords, or performance modes. Python acts as the core logic controller, managing inputs from the touchscreen interface and processing user commands. This backend communicates with Qt Quick, which renders the graphical user interface elements on the display. When a user interacts with the touchscreen controls, the Python script triggers audio events by communicating with Sonic Pi, a live-coding music synthesizer running under the Linux operating system. Sonic Pi processes these instructions in real time to generate the musical audio output. Power management and data routing are handled natively by the Raspberry Pi 5 board, connecting the display interface, LEDs, and audio processing pipeline into a unified, portable digital music performance device.