Doppio and Fate/Luck (Or the lack thereof)
everything i say should be taken as incorrect unless proven otherwise.
Doppio's first moments on screen involve him trying to get a kid out of the way of a moving truck, and himself being in the path as the kid effortlessly moves out of the way.
Despite how he later only talks to the bug, he seems to actually try to help the kid and almost gets himself killed for it.
His suitcase then gets run over, and his pants are covered in mud as he falls after getting out of the way. The song that begins to play is aptly titled sventura (Misfortune) as well.
Doppio is someone who has bad days.
The fortune teller, who effortlessly reads Doppio like a book, even brings mention to this. Doppio also agrees. However, when asked for more of his fortune being read, Doppio instantly refuses. He even denies the fortune teller's predictions, saying that it makes sense based on his appearance.
He notably changes his mind when more gets revealed, though. He is even told his face (which, is structurally probably different to Diavolo's) has something about it that's intriguing to fortune tellers.
Doppio is someone who has bad days. But this might've been enough (along with being told some pretty darn accurate information, even if he doesn't know he's a system) to get him to try and see if there's a positive fortune for him. Or maybe he's just a nosy little bastard.
Diavolo is someone who has good days.
The fortune teller is about to get killed by Diavolo for finding out the truth, but before he does this line took me by surprise.
Obviously, this is talking about how Diavolo keeping his identity a secret is beneficial for him, and Doppio makes that much easier.
However, given how... biased Doppio and Diavolo's relative power is, maybe there's a little bit of something else happening.
Diavolo cheats at fate. He leaves only the result of actions, yet his fortune is told by someone who looked at the result of the mud stain on Doppio's pants.
While Diavolo manages to get told Risotto is heading his way, Doppio gets to get on a taxi to their destination. And immediately gets scammed.
Even though Diavolo says its fine for the taxi driver (Mr. Driver, as Doppio calls him) to live, Doppio almost had the misfortune of having the one thing Diavolo told him not to show shown. Another bad thing happening to him, even if he almost "dealt with" the issue.
And then Risotto appears.
When a scalpel gets thrown at Doppio's foot, he fortunately manages to jump out of the way.
...And hits his face on a rock. At this point, perhaps due to Diavolo no longer fronting, has forgotten that he even mentioned how he recognised Risotto from Diavolo showing the fortune teller Risotto's picture,
Here he is, crying and freaking out from the blood and from (what he assumes to be) being attacked and robbed.
And then the line that made me want to make this post in the first place is said.
Risotto, at this point, understands that Doppio's ignorance and fear is not an act. He genuinely fears for his life, and fully believes he's being attacked just because he's unlucky.
Because it always happens to him. Because Doppio is someone who has bad days.
Only after Diavolo's eyes re-appear and the fight truly starts, does he recall Risotto is a hitman.
Perhaps, just like how Diavolo tries to manipulate fate for himself, Doppio has a similar "role" as King Crimson. Due to ABSOLUTELY NO REASON I CAN JUSTIFY OR ELABORATE, Doppio is the one that gets the short end of the stick so that Diavolo can prevail.
the following is me extrapolating the jojo soundtrack. the song sventura also seems to be just another one of Diavolo and Doppio's many, many themes, and probably just used for the same reason as filler.
From what I can see, after Diavolo fully makes an appearance, sventura (remember that? you should. i just mentioned it up there) plays for the first time for either of the two when the fortune teller harasses Doppio.
Going through the JoJo wiki, most instances of sventura that play afterwards either involve Doppio or something bad happening to Doppio.
Ep. 27 has it play for when Doppio uses Epitaph, and Risotto finds out Doppio's secret.
To make the connection closer to Doppio, sventura does not play during any part I can find in Ep. 28, where Diavolo is fronting for perhaps all of the episode.
The next time sventura plays is during Episode 33, when Doppio approaches Bruno and when the two cross the road. Neither are particular misfortunate, although Doppio definitely isn't having a good time crossing the road.
Sventura then plays in the next episode where Diavolo goes after the arrow. And then in the episode after that, it is used for non-Diavolo or Doppio purposes.
However one could say that the events that it plays in still aren't very fortunate. The whole... soul swapping thing and Mista's stand attacking him.
And then the next time the song plays is during the most unlucky thing to happen to Doppio.
Due to Team Bucciarati not knowing Bruno was dead, they shot at Doppio to the point where, even if he were able to cling on like Bruno had, it would've been impossible to stay in the body after the shots.
Nobody knew this would happen except for Giorno and Bruno. Giorno even says that they can simply heal Doppio (who they assume is Diavolo (who they assume is in an alive Bruno))'s wounds as a cover for Bruno's carelessness with whether his body "lives" or "dies.
Due to a line of bad luck that Doppio could have never seen coming, he dies. He even takes these bullets when the team thinks that they're shooting Diavolo.
Doppio is the one that has bad days in Diavolo's place. He takes the bad luck.
sventura does not play for the rest of this episode.
Diavolo, however, now has no sponge. There is no guard for the misfortune.
sventura plays a lot in the next parts.
Episode 37, it plays when the souls are returned to everyone's bodies and when Diavolo plans to retreat.
As soon as Doppio was gone and Diavolo no longer had his secret little sponge, he ends up suffering.
The last time sventura plays happens near the end of the showcase of Diavolo's death loop.
Despite this, one can gleam that there is a very familiar pattern with the deaths shown.
He is stabbed after crawling into a sewer, solely from being at the wrong place at the wrong time.
He is, to his eyes, being wrongfully autopsied on despite being clearly alive.
He trips and falls in front of a speeding vehicle.
All these deaths are, frankly, absolutely stupid. Diavolo's deaths involve him being horrendously unlucky in ways he would have never experienced before this moment, as he seemed to always be in the right place at the right time to get away with everything.
However, he doesn't have Doppio anymore to offset the full force of fate. Maybe it's karmic justice for his complete and utter domination over the path in life another soul takes. Or maybe Gold Experience Requiem is just an asshole.
But, as I'm sure you noticed, none of this really makes sense and I have completely lost the plot. But I am the real winner here, as I made you read through all of it. Hopefully my next analysis post makes a lot more sense.