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!Teto teto Tetoris [sotsunaku]

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

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Cooling Down [uparupa_04]

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.
Casual Teto [omooo109817]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Swimsuit Teto [kaibu23_seibutu]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Sansansanxu says thank you for 1 million views on Acute Love Addiction,

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!
Atena says thank you for 5 million views on Odochina.

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!
Mechanical Maid [kasupi_04]

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.
Day Off [SadArtist033]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Rei Rei Animation [imomimomahha]
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.Birdbrained [Sunnii_W]

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
Looking at some playlists I've made, it's kinda cool to see Jamie Paige to hit the top of the weekly views chart for two weeks in a row.

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!
Desire to Fly/飛行欲 New underrated Teto song with only 400 views that I really liked.
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!she got snafu’d.

Images with unexpected Kasane Teto references Could be found anywhere (even in official subs)
Teto and Mini Teto

A subreddit for fans of Kasane Teto! Posts relating to both Utauloid and SynthV Teto are welcome!
The UTAUs play basketball. [@r7o7t]

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.
The Difference Between Miku and Teto [rarohate76]

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