> If you're referencing everything to C you'll never understand the scales and their different fingering patterns.
If you watch someone play a Janko keyboard (1) then you'll notice that there is only one fingering pattern for each tonality or chord, you just shift up or down based on the tonic. Kind of like a guitar, where there are a handful of scale/chord/arpeggio shapes that are picked for efficiency (aka, "economy of motion") and aren't tied to the particular key.
If you watch someone play a Janko keyboard (1) then you'll notice that there is only one fingering pattern for each tonality or chord, you just shift up or down based on the tonic. Kind of like a guitar, where there are a handful of scale/chord/arpeggio shapes that are picked for efficiency (aka, "economy of motion") and aren't tied to the particular key.
(1) https://www.youtube.com/watch?v=_POoaGecU9w