Is it possible to change animate the colour of a active piano key when using midi file

[8bitsboy]

I created a animation based on a midi file. Rotating the active key of a piano.
I wondered if I could also highlight the active key by animating the shader color for instance?

Thanks for your help!

Gregory

[OmarEmaraDev]

Looks like you are somewhat on the right track. Once you write the color in Animation Nodes, you can access it from the shader using the Object Info node. What are you having difficulty with?