17 years ago today. The first ever use of Teto's UTAU voicebank was posted on NicoNico. Covering the OP of the anime AIR.
A subreddit dedicated to the sharing and discussion of music from Kasane Teto. We are also open to general discussion and news sharing! Feel free to share what you are making or listening too!Work In Progress [okayuyuyu2]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
The Mechanical Girl [natwjeq]

A community for fans of the virtual singer/robot Adachi Rei created by missile_39. This subreddit is run by fans and is not affiliated with missile_39 or Mechanical Girl.
DELAYED / feat. Kasane Teto
A subreddit dedicated to the sharing and discussion of music from Kasane Teto. We are also open to general discussion and news sharing! Feel free to share what you are making or listening too!31, Never had a job. [cherroapg]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Birds and Static [Melomdesu]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
They covered American Idiot to "celebrate" July 4
A subreddit dedicated to the sharing and discussion of music from Kasane Teto. We are also open to general discussion and news sharing! Feel free to share what you are making or listening too!Look at this Brushbuddy plush I bought at AX25

Magic isn't something you're born with; you have to draw it! Open up to magic's infinite possibilities by joining the Witch Hat Atelier community.
ウーパールーパースーパーカー / 重音テト
A subreddit dedicated to the sharing and discussion of music from Kasane Teto. We are also open to general discussion and news sharing! Feel free to share what you are making or listening too!Jirai Teto [ruriaolll]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Rei print, pin, and sticker I bought at AX25.

A community for fans of the virtual singer/robot Adachi Rei created by missile_39. This subreddit is run by fans and is not affiliated with missile_39 or Mechanical Girl.
For those going to AnimeExpo(AX), do you know of vendors selling Teto Merch?

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Teto Shaves some Ice [midorikames14]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
New User Flairs have been added!

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Top 5 Most Popular Teto Works for June 2025. (via vocaloard.)

A subreddit dedicated to the sharing and discussion of music from Kasane Teto. We are also open to general discussion and news sharing! Feel free to share what you are making or listening too!
Rei with Glasses

A community for fans of the virtual singer/robot Adachi Rei created by missile_39. This subreddit is run by fans and is not affiliated with missile_39 or Mechanical Girl.
V / Kakuriyo feat.初音ミク+鏡音リン+重音テト+GUMI+flower
A subreddit dedicated to the sharing and discussion of music from Kasane Teto. We are also open to general discussion and news sharing! Feel free to share what you are making or listening too!Doing another User Flair recommendation thread. Suggest songs we don't have for user flairs.

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Teto-san [aru_aru_14]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
To the Point [kanataday39]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
The Mechanical Girl

A community for fans of the virtual singer/robot Adachi Rei created by missile_39. This subreddit is run by fans and is not affiliated with missile_39 or Mechanical Girl.
To Believe in T. [owaridayo]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!