In acoustic recording the space is not background. It is a component you are choosing on purpose.
Folk
The microphone bleed everyone else tries to eliminate is the thing holding the recording together.
A main pair carries the recording. Everything else is a supporting decision.
A guitar radiates different sound in every direction, so placement changes the instrument.
Coincident, spaced and near-coincident are three answers to one question: how does a listener locate a sound?
A released performance is usually edited from several takes. The practice is old, disclosed and defensible.
A large instrument producing low frequencies in a small room is the hardest thing to capture in...
Dreadnought, orchestra model, parlour. The differences are audible and predictable on a recording.
Compression that suits pop actively removes what acoustic music is doing.
Historically informed performance changed tuning, tension and articulation together.
