ボーカロイドたちがただﾃｯﾃｰﾃﾚｯﾃｰするだけ (VOCALOID-tachi ga Tada tettey-terettey Suru Dake)

Background
A composition I made where Rin and her friends only sing "tettey-terettey." You get bored, you lose. Please by all means use this for background music while working. "VOCALOID-tachi ga Tada tettey-terettey Suru Dake", also known as "tettey-terettey", is an original song composed by GYARI with Kagamine Rin/Len, Megurine Luka and Yuzuki Yukari. It is part of GYARI's "VOCALOID Only" series.

This song was released as a single.