This is a list of known temporary/working titles for lynch. songs.
Oftentimes they’re named after the venue or location where they were written.

矛盾と空 (mujun to sora) → graviton
Inspired by LUNA SEA’s Gravity, but Yukino told Hazuki it was a shit title.
矛盾と空 (mujun to sora) → ○○と嘔吐 (?? to outo/?? and vomit)
This was actually meant to be the final title, but Reo rejected it. Since this was brought up during a live, Reo seemed to have forgotten the first half (and Hazuki was embarrassed he brought it up at all).

a grateful shit → 絶一門 (zetsuichimon)
The name of a mahjong move but also appears in the Monster Hunter series(?). The members still call this song “zetsuichi”.

MAZE →  晁直リクエスト (Asanao Request)
Asanao had requested a song that was “intense, not a single and usable for the last song in a set”.

DEVI → 柏シャッフル (“Kashiwa shuffle”)

THIS COMA → kiritanpo
Kiritanpo is a rice dish from Akita, where the song was written.
UNTIL I DIE → emo, NEVER DIE

INFERIORITY COMPLEX → ヘビメタ (“heavy metal”)
ANIMA → AHO (“moron”)
THE FATAL HOUR HAS COME → Yokohama
FROZEN → スーパー歌もの (“super clean singing song”)
A FLARE → アニメ (“anime”)

CRYSTALLIZE → DANCE

VANISH? → VIRUS
One EXODUS-EP song was actually performed and introduced to fans as VIRUS live a few times prior to the actual release. Even though I was there for both shows where it happened, I can’t remember if it was VANISH or INVINCIBLE. I’ll get back to you on that…

GREED → モンスター (“Monster”)
GUILLOTINE → シャッフル (“Shuffle”)
MERCILESS → FAST
OBLIVION → デジ (“digi”, as in digital)

EVOKE → BAT

EVIDENCE → COAST
Named after the Shinkiba Coast venue, where the final for the previous album’s (D.A.R.K.) tour was held.
PRAYER → AK metal, new metal

SORROW → yusuke_6

THIRTEEN → FINALE
The last song to be written for the album
JOKER → CIRCUS
AMBLE → AMBRE
AMBRE was the intended title, presumably chosen by Hazuki after the diptyque candle of the same name, but after a misspelling they stuck with it.
FIVE → AVEDA
After Hazuki’s favorite shampoo/conditioner brand…?
OBVIOUS → ZOMBIE

Unknown Working Titles:
breakdown
OSSAN