Does anyone know if it’s possible to call browse() where item_key is case insensitive?
item_key is numeric 
Ah, I see my error (although item_key is defined as a string, it is really two numbers separated by a colon, so point taken).
I am using the Python library and was twiddling some code from Roon Command Line for my own use. I mistakenly thought that the api browse function was akin to a search, but I see now that the “search” part was done in Python code using the results of the api browse request. That api browse request is search independent (as far as I can tell).
Am I missing something? Is there a way to search using the browse (or some other) api call?