Shingeki no Kiseki

Shingeki no Kiseki (進撃の軌跡) is a concept album for the Attack on Titan anime. It was composed and written by singer/songwriter Revo of, and released on May 17th, 2017. The regular edition contains eleven songs and one bonus track; while the limited edition has the eleven songs, three bonus tracks, and an anime music video.

Music video
Jiyuu no Daishou [Theatrical Size] was a music video included in the LE featuring the animated sequence from Attack on Titan Part 2: Jiyuu no Tsubasa for which Jiyuu no Daishou was created. Both the song and lyrics were made especially with the beginning of the Scouting Mission in mind, to synchronise with the animation and hint at future story developments.

Vocals

 * Revo
 * TSUKIKA
 * Misaki Fukunaga
 * MANAMI
 * Eiko Matsumoto
 * Mami Yanagi

Voices

 * Marina Inoue
 * Hiroshi Kamiya

Narration

 * Sascha

Musicians

 * Guitar: YUKI (except Track 9), Takeshi Nishiyama (Track 1 and 11), Leda (Track 9)
 * Bass: Atsushi Hasegawa
 * Piano and Keyboards: Koji Igarashi
 * Drums: JUN-JI (Except Track 9), joe (Track 9)
 * Harp: Tomoyuki Asakawa
 * Percussion: Mataro Misawa
 * Solo Violin: Gen Ittetsu
 * Solo Trumpet: Masanori Suzuki
 * Recorder and Tin Whistle: Hideyo Takakuwa
 * Strings: Gen Ittetsu Strings
 * Brass: Masanori Suzuki Brass Section
 * Woodwinds: Hideo Takakuwa Woodwind Ensemble
 * Choirs: Choir-Kyo- [Ritsuyukai], Ensemble OtonoHa, Voces Tokyo
 * Choir Conductor: Yoshinori KOBA

Production staff

 * All music was written, composed, arranged and produced by Revo
 * Executive Producers: Koji Takahashi, Kazuo Ishikawa
 * Recording Engineers: Suminobu Hamada, Hiroyuki Akita, Akihiro Tabuchi
 * Mixing Engineer: Suminobu Hamada
 * Mastering Engineer: Yasuji Yasman Maeda
 * Sound Effects Editor: Hirokazu Ebisu
 * Sound Effect Recording Studio: Mediagate Studio
 * Computer Programmer: Revo

Trivia

 * The LE packaging features one of the walls, with different sleeves featuring an open gate, a gate blocked by a boulder and a gate blocked by a hardened titan.
 * It is implied Revo can transform into a bird, as it is shown in the packaging and the Guren no Yumiya music video, heard in the first bonus song, and referenced in 14 Moji no Dengon lyrics.
 * The title "14 Moji no Dengon" is a reference to a Sound Horizon song, "11 Moji no Dengon", which also features a dying mother leaving an ambiguous message to her child.
 * The full version of Seishun wa Hanabi no you ni features a lyric about a nighthawk, which was the main motif of a Sound Horizon single about a band from a parallel world, just like Attack on Titan: Junior High is a parallel world to Attack on Titan.