Scroll to zoom in & out interaction

Hi!
I want to build a prototype that will allow users to zoom in and out from one photo to another using scrolling/pinch on trackpad.
I can also make a huge photo to zoom in and out of it.
The idea is to make an interface in which zooming in and out will change photos as well as songs, in sync.
Any thoughts of how to do it?
Wireframe demonstration below

L

Thanks!!!

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