All songs of Sou
- Akashi Toshite
- Ayatori
- Bakesou na Kokoro
- Blue Screen
- Boku wa Mizu ni Naritakatta
- Bubble
- Chocolate Town
- Chopin to Koori no Hakken
- COSMIC BEAT
- Daimei no Nai Tenjikai (feat. Sou & Amaga Elu)
- Darling Doll
- DOMESTIC SHOUT
- Eiseikikou
- Erica
- flos
- Gimme Gimme
- Gishinanki
- Gray no Umi
- Gusha no Parade
- Hai Kara
- Haita
- Hakushi no Haru
- High Heels
- Hungry Nicole
- Imperial Boy
- Jouyatou [Nightlight]
- Karakara
- Kitakaze no Roots (feat. Sou & Amaga Elu)
- KOHAKU
- Kokoronashi
- Kokuu Fukuka no Yuuutsu
- Kotobanokori
- Kouign-Amann da
- Lagrange
- Maboroshi (feat. Sou)
- Mairieux
- Mendokusai Otoko [Annoying Man]
- Migi ni Ma Girl
- Miraikei Innocence
- Mou Aenai to Omou
- Mr. Fixer
- Mrs. Fuse
- Myoujou Galactica [Morning Star Galactica]
- Namazu
- Nami ni Namae wo Tsukeru Koto, Bokura no Kokyuu ni Owari ga Aru Koto
- Natsu ga Owaru Kaze no Oto
- Nero
- Noid
- Nonsense Bungaku
- Odoryanse
- Otona ni Natta
- Outsider
- Planetes
- Q
- Redirect
- Renai Saiban
- Ryuuseitan feat. Sou
- Sakasa Syndrome
- sakura breeze
- Sarishinohara
- Sekai wo Inuite
- SENSE OF WONDER
- Shinsekai LIVE
- Shinsou
- Shishunki Shounen Shoujo
- Sparkbug
- StarCrew
- Tada, Kimi no Mama de [Rest in peace.]
- Tayutau Mama ni feat. Sou [To the Dictates (feat. Sou)]
- Teikoku Shoujo
- Terminal
- tig-hug
- Tokyo Ghetto
- Tomadoi Rhythm
- Tsukiyo no Tact [Tact of Moonlit Night]
- Turing Love feat. Sou
- Utopia
- Warumono
- WHAT
- Wonder Life
- Yabure Kabure feat. Sou
- Yosasou
- Yurushite Seiran
- Zawameke (feat. Sou) [Ruido (feat. Sou)]
- Zennin Janai