I think personally that Pluto is a planet solely aimed at one area and this is the shadow of the self but also the collective, to penetrate, make sense, switch the piece around to make the puzzle fit back together again and to see a much more whole picture and how your light can then fit back into the world with everyone else, transforming the spiked parts of our personalities.
The common issue I personally come across on forums such as this is the use of backing things without context nor evidence, I think what separates people with Pluto in Scorpio is the ability to bring forwards treasures from the dark..
I don't think Pluto in Libra is in detriment, fall or domicile or exaltation and I have good reason to think of why.
Pluto in a lot of ways asks us to die, now this you could assess as either metaphorical or real, I have Pluto in Scorpio in the 8th house trine Sun and opposite Mars, square Mercury and square ascendant / descendant axis, this however is the blessing, through such pain with the self and realizing you projected so much dark onto the word but were also mislead by the obsessions of your own soul and others, you will come up against people who hold your own power rather than you holding your own.
This thread asserts way too much into the physical aspect of life, Scorpio is non of that, that belongs to Taurus.
I see the Scorpion as an arachnid buried under the sand who is blind but the stinger is out of the sand and jabbing at anything it can.
This does not really = Mars, this is more of a self issue, the Scorpion is a small creature but it's issues with climbing the internal caverns in their own psyche cause emotional trauma to themselves and others, they can also be injected with this venomous darkness from the world and are here to learn how to deal with it, such as myself.
Back to death.
Death symbolizes ending, it don't truly mean rebirth or reborn, I don't think Scorpio or Pluto are transformers, the reason being is that they cut at themselves to reveal more of what is hidden within the self, the stinger will always kill them in the end, sort of karmic, but really you are only revealing to yourself what was always there but because of your immaturity with the depths of the unknown, the darkness has taken you over and you are that Scorpion buried in the sand, you kill yourself by reacting too much where instead let that energy go through you and let it give you self possession and firm grip of reality which is more towards the Taurus Axis. Both Taurus and Scorpio learn from each other this way.
I saw a Scorpio Mars on here referencing music, good song choice, but I see a person transforming into a werewolf, this is Moon territory not Mars, to run after throwing back in defense is a Cancerian thing, since Cancer lack some of the basic know-how of themselves since thy are receptive rather than forceful, but you dared to toil and mess with such a rapidly changing emotional force?
Mars is not truly emotional, he is a warrior, he pushes his sword in the direction that makes sense and sometimes it comes with a heavy price, running away is not a thing Mars will do, but in order to get where he needs to, he learns temperance and calm in the heat of what could be that victorious moment, the stability of mind and sheer force of will.
Russel Crowe: Gladiator, best example of honorable Mars in Aries.
Fights against Mars in Scorpio, Joaquine Phoenix.
The Mars in Scorpio is unscrupulous, he will regardless of winning be hated and likely will be assassinated, he is emotional and not able to direct his force with any true force, but a manipulated version as he cuts RC down before the fight.
As for music! Here is a pair of Cancers, one has Sun conjunct Jupiter (Jesse Howard) square Pluto in Libra.
Emotional, not martial.
Jupiter here is exceptionally strong and dedicated to his beliefs, he walks the walk and is one with life and God.
His Leo Mercury adds a lot of passionate dramatic flair.