Comparing Speaker Cables

I don’t know.  And when I did comparisons using a few songs there differences where clear. And there was song variations based on dynamic range of music and number of sounds within a bar. 

That is not a problem at all.

The design of the cable tells you all you need to know.

You always want your cables as short as possible. This is why we put mono amps behind the loudspeakers. This is most important with low impedance loudspeakers.

For full range speakers and subwoofers you also want heavy (low) gauge wire 12 gauge or lower with as low inductance as possible. Kimber Kable makes the best speaker wire although I do not care much for their interconnects. The real sonic difference to listen for is low bass performance.

Have fun!

My advice is to pick a small number of tracks and take very careful notes.  Listen for the extremes and pick tracks that are hard to reproduce.  This is the best possible way to do these kinds of comparisons.  

If, based on your notes, you don't get a general sense of any differences, then that is very good and it suggests the sound profile of the cables is similar.  

I have found there is usually a difference in treble or bass that becomes noticeable if you focus in those areas and possibly in terms of nuance and detail.

"Kimber Kable makes the best speaker wire "????...an absolute ridiculous statement...

Unless someone else is switching the wire for you, it's a pointless exercise, notes or not.