Miyata Koki, Seki Tomokazu and Takahashi Naozumi - Haruka Kimi no Moto e
Hitsuji No Uta - Megumi Hayashibara, Seki Tomokazu - Destiny ~Fate~
Hayashi Nobutoshi\Seki Tomokazu (Tasuki\Chichiri) - Aoi Jiyuu. Shiroi Nozomi.
Gravitation - Glaring Dream (Bad Luck (Tomokazu Seki))
Seki Tomokazu (Ken, Weiss Kreuz OST) - Caravan
Fushigi Yuugi OST (Seki Tomokazu) - ღ Ka Chou Fuu Getsu (Chichiri)
Seki Tomokazu - Shourisha-tachi no banka
Tomokazu Seki - Epitaph (Сейю Синьи Когами)
Seki Tomokazu &Megumi Hayashibara - Destiny ~Shukumei~ (Hitsuji no Uta - ED)
Seki Tomokazu [Lynx] - Running Gun Blues
Fushigi Yuugi OVA 2 (Seki Tomokazu) - ღ Mizu-Kagami (Chichiri)
Seki Tomokazu - Kachou Fuugetsu [Fushigi Yuugi, Чичири]
Чичири - Seki Tomokazu - Ochanoko Saisai Hengen Jizai
Чичири - Seki Tomokazu - Kachou Fuugetsu
Seki Tomokazu - Blind Game Again
Koyasu Takehito, Seki Tomokazu - Bosanova, Casanova
Seki Tomokazu &Megumi Hayashibara - Destiny ~Shukumei~ (Hitsuji no Uta - ED)
Seki Tomokazu, Takahashi Naozumi & Miyata Kouki - Haruka, Kimi no Moto he...
Seki Tomokazu - ღ Ka Chou Fuu Getsu (Chichiri)
Seki Tomokazu - Go the Distance (from Hercules)
Melissa (CV: Seki Tomokazu) - Sekirara
Tomokazu Seki - Glaring Dream(из аниме Гравитация)
Takehito Koyasu & Tomokazu Seki - Suggestion (RED SUNS mix)
Tomokazu Seki - Glaring Dream (Gravitation END)
Takehito Koyasu & Tomokazu Seki - Kiseki no Hana
Tomokazu Seki (Ken) - Shindemo Ii
Tomokazu Seki [Chichiri] - Kа Chou Fuu Getsu
Чичири - Tomokazu Seki - Mizukagami (OVA2)
Tomokazu Seki [Chichiri] - Ka Chou Fuu Getsu
Tomokazu Seki - Don't Stop the Music
Gravitation (Bad Luck (Tomokazu Seki)) - Glaring Dream
Tomokazu Seki - Minashigo no Ballad (Tiger Mask ED)
Tomokazu Seki - Minashigo no Ballad (Tiger Mask ED TV-size)
Koyasu Takehito, Seki Toshihiko, Seki Tomokazu, Hoshi Souichiro, Miki Shinichirou, Ishida Akira, Yuuki Hiro - DOUBLE DEAR
Seki Tomokazu (Chichiri), Koyasu Takehito (Hotohori), Hayashi Nobutoshi (Tasuki), Midorikawa Hikaru (Tamahome) - Mecha HAJIkete GATTSU Tobashite
koyasu takehito & seki tomokazu & miki shinichiro & yuuki hiro - tomorrow
Seki Tomokazu ( Bart Garsus(Vandread) / Sousuke Sagara(Full Metal Panic!) / Chichiri(Fushigi Yūgi )) - Glaring Dream
SKET ROCK (Hiroyuki Yoshino, Hiro Shimono, Tomokazu Sugita, Tomokazu Seki - PARTY! HALLELUJAH! [ED6]
Akira Ishida x Koyasu Takehito x Seki Toshihiko x Seki Tomokazu x Hoshi Souichiro x Miki Shinichirou x Yuuki Hiro - DOUBLE DEAR
Weiss Kreuz Gluhen - Koyasu Takehito & Seki Tomokazu & Miki Shinichiro & Yuuki Hiro - Tomorrow
Seki Tomokazu ( Bart Garsus(Vandread) / Sousuke Sagara(Full Metal Panic!) / Chichiri(Fushigi Yūgi )) - Glaring Dream
Morimura Tenma (Seki Tomokazu); Inori (Takahashi Naozumi); Nagareyama Shimon (Miyata Kouki) - Haruka, Kimi no Moto he (В Далёкие Времена OP)
高橋直純 / Takahashi Naozumi & 宮田幸季 / Miyata Kouki & 関智一 / Seki Tomokazu - Haruka Kimi no Moto he
Weiss Kreuz Gluhen -Koyasu Takehito.Seki Tomokazu & Miki Shinichiro & Yuuki Hiro - Tomorrow
Morimura Tenma (Seki Tomokazu); Inori (Takahashi Naozumi); Nagareyama Shimon (Miyata Kouki) - Haruka, Kimi no Moto he... (OP single)
Koyasu Takehito & Seki Tomokazu & Miki Shinichiro & Yuuki Hiro - Velvet Underworld
Yuto Uemura, Yuto Uemura, Ire Shiozaki, Daiki Kobayashi, Tomokazu Seki - Nanbaka Datsugoku Riron