Without doubt and regardless of size, room dimensions do have an influence on your system's sound.
But on the other hand sound is sound. Your system and room make no distinction between the sound of a music and a movie performance, nor should it. And neither should you.
As such, either room type should be relatively neutral if your goal is to capture what is in the recording and with minimal influence from you or your room.
That's assuming of course you're confident the majority of recordings themselves were sufficiently engineered (and do not require your help) and that your system is able to retrieve and process the vast majority of information embedded into the recording.
If you are, then why add your room's acoustic info on top of the ambient information that is already plentiful and embedded in the recording? It would seem there is nothing natural or authentic about such a strategy either in practice or in theory.
If you are not, then all bets are off anyway.
If unsure, then it would seem your best bet is to err on the side of neutrality. At least this way you have potentially one less variable to correct later.
-IMO
But on the other hand sound is sound. Your system and room make no distinction between the sound of a music and a movie performance, nor should it. And neither should you.
As such, either room type should be relatively neutral if your goal is to capture what is in the recording and with minimal influence from you or your room.
That's assuming of course you're confident the majority of recordings themselves were sufficiently engineered (and do not require your help) and that your system is able to retrieve and process the vast majority of information embedded into the recording.
If you are, then why add your room's acoustic info on top of the ambient information that is already plentiful and embedded in the recording? It would seem there is nothing natural or authentic about such a strategy either in practice or in theory.
If you are not, then all bets are off anyway.
If unsure, then it would seem your best bet is to err on the side of neutrality. At least this way you have potentially one less variable to correct later.
-IMO