Indeed...the load will have impact on the volatge and current levels in the cable - so it is not just the music (signal) that is critical but also the load.
You need to consider
Source Signal ( type music, frequency content, in some cases test signals may provide the most balanced break-in)
Load ( active, passive or a combination )
Volume setting ( determines Volatge and current level in concert with load )
Time ( length of time used to burn in and possibly the times of day used to burn - obviously no point burning in during the morning if you listen at night, as everyone knows that the grid power varies throughout the day)
Furthermore, since amps, tubes, capacitors, speakers and sources all break-in then you need to add break-in times together, otherwise your cable will only be broken in for how your tube amp or speaker sounded 300 hours ago ...in essence it needs to break-in synergistically once ALL components are broken-in)
...this is if you believe.
You need to consider
Source Signal ( type music, frequency content, in some cases test signals may provide the most balanced break-in)
Load ( active, passive or a combination )
Volume setting ( determines Volatge and current level in concert with load )
Time ( length of time used to burn in and possibly the times of day used to burn - obviously no point burning in during the morning if you listen at night, as everyone knows that the grid power varies throughout the day)
Furthermore, since amps, tubes, capacitors, speakers and sources all break-in then you need to add break-in times together, otherwise your cable will only be broken in for how your tube amp or speaker sounded 300 hours ago ...in essence it needs to break-in synergistically once ALL components are broken-in)
...this is if you believe.