We sometimes use odd terms to describe what we hear. Transparency is one of them.
What does it mean to see through something when we listen to our stereo systems? Do we mean that clarity is at such a level we cut through the gauze of the speakers? Or, do we mean that we can see deeper into the thicket of musicians on stage?
In my case, it is the latter. When I switched from PS Audio designed round speaker cables to the MG Audio flat ribbon designs, a whole world of transparency opened for me. Where once the musicians crowded together on a smaller stage, the new cables opened up the stage and spread apart the players on that stage—creating a sense of greater transparency, providing enough room to hear the instrument's ambiance.
There are many more examples of what I mean referring to transparency, but it's one of those things best understood when it happens to you.