Not all music studios are equipped with musical instruments. Some smaller studios do not have instruments, and bands and artists are expected to bring their own instruments, amplifiers and speakers. However, major recording studios often have a selection of instruments in the “live room”, typically instruments, amplifiers and speaker cabinets that are large, heavy, and difficult to bring (eg, a Hammond organ) or infeasible (as in the case of a grand piano) to bring in for a single recording session.
Having musical instruments and equipment in the studio creates additional costs for a studio, as pianos have to be tuned and instruments, tube amplifiers, and speakers need to be maintained.
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