mc wrote:
A load capacitor -- well, load capacitance is usually something we try to
get rid of, not something we add by adding a capacitor.

A very important and not at all uncommon exception is that any
transducer that is primarily capacitive, for example, a condenser
microphone or a ceramic mic (for example, laboratory mics using
barium titanate) MUST have a specific load capacitance to achieve
their sensitivity specifications and frequency response. If the load
is resistance, the result is a rising frequency response. If the load
capacitance is not correct, the sensitivity will be off. Add more
capacitance, say, with a longer cable and the result is NOT a
change in frequency response but a change in broadband
sensitivity.