Trouble parsing lyrics under lack of particles


As always, we have to take non-sentence poetry at face value; sometimes it is
almost always ambiguous, but there is probably another perspective I am over
looking. Taking a look at the final verse from きのこ帝国's second track from 渦になる,
titled "退屈しのぎ" ([full lyrics and transcription / translation I'm working
on](https://genius.com/12611903)):

[code]

    唐突に始まるお前の昔話
    聞きながらアルペジオ
    冴えないノンフィクションの結末を
    握っているお前の手は冷たいから嫌だ
    やさぐれ吐く息に混じる声が歌い出す
    
[/code]

The bits of this verse fall out pretty easily, but the way they fit together
is a little hard for me. My attempt:

**唐突に始まるお前の昔話** == "Suddenly _it_ begins, _your reminiscence_ "

**聞きながらアルペジオ** == Is the 昔話 being listen to, as in "while listening"? (Could
it be ながら "although [in which case, does this imply an arpeggio is being
"played"?]) Is this 聞き as in "ask"? Why is アルペジオ surrounded by no verb phrase
or particles? Is it アルペジオを as in アルペジオをする?

**冴えないノンフィクションの結末を** == "concludes _the dark / sullen non-fiction_ "

Could this 冴えない mean "boring / uninteresting" ? Does アルペジオがノンフィクションの結末する mean
the same, as in, the arpeggio concludes the non-fiction?

**握っているお前の手は冷たいから嫌だ** == Does this 握っている describe お前, resulting in something
like, "Your hand, that I'm clutching, is cold, so I hate (holding) it"

**やさぐれ吐く息に混じる声が歌い出す** == "Sings in a voice with a sulking breath"




As far as parsing goes, my brain is intuitively seeing three
["sentences"](https://japanese.stackexchange.com/q/48863/5010) in this verse.

  * 唐突に始まるお前の昔話(を)聞きながら、アルペジオ。
  * 【｛（冴えないノンフィクションの結末）を握っている→｝お前の手】は、冷たいから嫌だ。
  * ｛（やさぐれ吐く息）に混じる声｝が、歌い出す。

Note:

  * Some verb after アルペジオ is omitted. What's omitted is a very hard question for me. One easy option is to extract the アルペジオ part as a sentence word (like "Parsley sage rosemary and thyme.").
  * 冴えないノンフィクションの結末 = the ending of a boring/uninteresting/mediocre non-fiction story
  * ～を握っている = to have control/discretion over ～
  * 握っているお前: 握っている modifies お前 (this is perfectly fine in Japanese), and お前 is the person who is doing the action of 握る.




As far as parsing goes, my brain is intuitively seeing three
["sentences"](https://japanese.stackexchange.com/q/48863/5010) in this verse.

  * 唐突に始まるお前の昔話(を)聞きながら、アルペジオ。
  * 【｛（冴えないノンフィクションの結末）を握っている→｝お前の手】は、冷たいから嫌だ。
  * ｛（やさぐれ吐く息）に混じる声｝が、歌い出す。

Note:

  * Some verb after アルペジオ is omitted. What's omitted is a very hard question for me. One easy option is to extract the アルペジオ part as a sentence word (like "Parsley sage rosemary and thyme.").
  * 冴えないノンフィクションの結末 = the ending of a boring/uninteresting/mediocre non-fiction story
  * ～を握っている = to have control/discretion over ～
  * 握っているお前: 握っている modifies お前 (this is perfectly fine in Japanese), and お前 is the person who is doing the action of 握る.

