What would be cool is if this hooked into your github account or similar and was able to measure what effect music actually has on productivity (assuming a causal relationship).
Is there a reason why it's not available in the Republic of Ireland, or is it just that app releases take time to percolate through App Store territories?
While it takes some getting used to I'm of the opinion that Google's implementation of this is correct and more usable than the alternative.
The search results are a UI widget and it's reasonable and correct for you to navigate between results with the arrow keys once that control is focused. This is similar to something like a file explorer where the arrow keys select between files or folders rather than scrolling the window.
It's useful to ensure you're not matching things that you don't mean to, which is a problem I often see when code reviewing regex.