The tricky part here is clearly the audio side: making a laser produce music while it works means every path matters. The maker optimized the laser paths for audio fidelity and arranged the notes along the vector path to improve how the graphic renders. Balancing those two goals, clean sound and clean image, in one project seems like the real challenge, and the effort shows in the result.
The build itself is simple to describe but sharp in execution. A black-coated rectangular metal card sits on a metal tooling plate, and a laser engraving machine etches the dark surface away in rectangular sections. The beam traces contours and engraves a crowned shield emblem, with the letters KD in each upper corner. The design is a high-contrast silhouette of a seated figure holding a downward-pointing sword on the Iron Throne, and that subject suits the medium well.
What stands out to me is the reported fidelity of the notes across different sources and lenses. That points to careful tuning rather than luck. The maker says the finished product is satisfying, and given the contrast achieved here, that feels earned.
The open item is the audio capture. The recording level came out low and the maker is working on fixing it, with a plan to try an external microphone for better quality. That seems like the right next step, because the sound produced during engraving is half the appeal of a piece like this. Once the capture chain matches the quality of the engraving itself, the whole thing should land even better.