The case Sega v. Accolade, 977 F.2d 1510 is relevant but is not entirely parallel to your hypothetical. The section in intermediate copying cites Walker v. University Books, 602 F.2d 859, which stated that
[T]he fact that an allegedly infringing copy of a protected work may
itself be only an inchoate representation of some final product to be
marketed commercially does not in itself negate the possibility of
infringement
Defendants Accolade cite myriad cases which "establish the lawfulness of intermediate copying. Most of the cases involved the alleged copying of books, scripts, or literary characters". What weakens the power of Accolades citations is that "the eventual lawsuit alleged infringement only as to the final work of the defendants", therefore the position in Walker is not invalidated. There are other cases, more similar to Accolade, which "involved intermediate copying of computer code as an initial step in the development of a competing product", and it turns out that "in none of them was the legality of the intermediate copying at issue". Sega then cites "an equal number of cases involving intermediate copying of copyrighted computer code to support its assertion that such copying is prohibited", but again "the lawfulness of intermediate copying was not raised in any of those cases". So the court declines to overturn Walker. The court lays the ground for a fair use defense based on unique properties of computer code (you can't read and make sense of it). Furthermore, § 117 of the copyright act has special provisions applicable to copying of computer programs, which do not apply to songs.
The court does however conclude that
Where there is good reason for studying or examining the unprotected
aspects of a copyrighted computer program, disassembly for purposes of
such study or examination constitutes a fair use.
You should therefore not leap to any strong conclusions about whole-work copying as an intermediate step to fair use of a song.
Assume that you have a legal recording of Arghane Manine and want to comment on the structure of the lyrics. You probably have to transcribe them yourself, creating a derivative work. I assume that the portion of the lyrics actually published (a half-dozen words) is within the scope of fair use, the question is what would whole copying as a step towards fair use change. The court would have to engage in minute scrutiny of all of the factors. The difference between your published work and the intermediate copy resides in the third factor, "amount and substantiality". The bulk of the expressive content and value is the audio component, so it is unlikely that the court would find your intermediate copy to have engaged in "substantial copying" by writing down the words. The other factors strongly favor a fair use defense.