I recently had the great fortune to be able to work on a project for a Smokey Robinson show live in Detroit. Another 4k high resolution motion graphics commercial advertisement.
2 columns of 5 HD video files each were later stitched together by the display software. These final renders can take some time unfortunately, even on the renderfarm. It's always a trade-off to complete a project within time and budget.
Definitely a fun project to work on with Smokey!