Гуру ПесенHappy synthesizer / Тексты песен
[96 neko, Len] - [Happy Synthesizer]
Акира Неру и Мику Хатсуне - Happy Synthesizer
Megurine-Luka-amp-Megpoid-Gumi - Happy Synthesizer (off vocal)
Nico Nico Chorus - Happy Synthesizer
Leeyeon x Nako - Happy Synthesizer
Nico Nico Chorus (girls edit.) - Happy Synthesizer
Kagamine Len & Rin - Happy Synthesizer
Megurine Luka & Megpoid Gumi - Happy Synthesizer (Instrumental)
Ticci Toby - Happy Synthesizer
Super Sonico - Happy Synthesizer
Gakupo&Kaito - Happy Synthesizer
Kagamine Len & Kuro Neko - Happy Synthesizer
Cleo-chan, Jeroi D. Mash, Sati Akura - Happy Synthesizer (russian Vocaloid cover)
EasyPop feat. Megurine Luka & GUMI - Happy Synthesizer
happy synthesizer - Kagamine Len & Kuroneko (96neko)
happy synthesizer - Kagamine Len & Kuroneko (96neko)
Megurine Luka & GUMI Megpoid - Happy Synthesizer
Megurine Luka, Gumi - Happy Synthesizer
Kagamine Len & Ren - Happy Synthesizer
Rin Kagamine, KAITO Vocaloid - Happy synthesizer
Hatsune Miku Vocaloid - Happy synthesizer Lat
EasyPop(BETTI) feat. GUMI - Happy Synthesizer
Сакура Мику - Happy Synthesizer
IA x Yuzuki Yukari - Happy Synthesizer
96 Neko feat. Kagamine Len - Happy Synthesizer
Len POWER Append ・Nekomura Iroha - Happy Synthesizer
SeeU & Hatsune Miku append light - Happy Synthesizer
Vocaloid - Happy Synthesizer (eng)
Мегурине Лука и Мегпоид Гуми - Happy Synthesizer
[VOCALOID] Han - Happy Synthesizer
Twilight Sparkle - Happy Synthesizer
Сакура Харуно и Мику Хатсуне - Happy Synthesizer
Ми Сакамаки НЯ - Happy Synthesizer
[UTAU] Alex Kurai & SOFTloid - Happy Synthesizer (New version)
Акита Неру и Мику Хатсуне - Happy Synthesizer
96neko and Len Kagamine - Happy Synthesizer
Alice x Hiro - Happy Synthesizer
96猫 (96Neko/Kuroneko) & Kagamine Len - Happy Synthesizer
Paru - Happy synthesizer (English)
Lizz - Happy Synthesizer English ver. [Lizz]
Gumi Megpoid & Megurine Luka - Happy Synthesizer
Vocaloid ( 96neko and Len ) - Happy Synthesizer
Kagamine Len feat. 96Neko - Happy Synthesizer
96Neko x Kagamine Len - Happy Synthesizer
IA - Happy Synthesizer (feat. Utatane Piko)
Mariel | SNK Rivaille - Happy Synthesizer
SeeU Вокалоид - Happy Synthesizer
Неизвестен - Happy Synthesizer
【UTAUカバー】Alex Kurai & SOFTloid - Happy Synthesizer
Kogeinu & Rumdarjun - Happy Synthesizer
Kagamine Len/neko - Happy synthesizer
Ito Kashitaro - Happy Synthesizer
Utatane Piko & Ia - Happy Synthesizer
Akaito Shion - Happy Synthesizer
❤Вокалойд❤ - ║Utatane Piko✸Ia║Happy Synthesizer
Vocaloid SeeU - Happy Synthesizer
[96 neko, Len] - [Happy Synthesizer]123
Кагамине Лен и Неко69 - Happy Synthesizer
KAITO & Kagamine Rin - Happy Synthesizer
Nanami ∞ Ukalan - Happy Synthesizer
明Neru、初音ミク - Happy Synthesizer
Neko 96 & Kagamine Len - Happy Synthesizer
SeeU and Miku - Happy synthesizer
Luka & Gumi - Happy Synthesizer САМАЯ КРУТАЯ ПЕСНЯ (и по исполнению тоже)
Вокалоиды - Happy Synthesizer :)시유,シユ (Vocaloid - SeeU)© & 初音ミク (Vocaloid - Hatsune Miku)©
Вокалоиды - Happy Synthesizer :)시유,シユ (Vocaloid - SeeU)© & 初音ミク (Vocaloid - Hatsune Miku)©
Luka & Gumi - Happy Synthesizer САМАЯ КРУТАЯ ПЕСНЯ (и по исполнению тоже)
Nico Nico Chorus [SAK & GEM, Nico & tama, 月乃紫音 ＆ apo＊, uMi, Nyao, Mes, NO=L ft. Any＆terry] - Happy Synthesizer
歌手音ピコ( Vocaloid 2 - Utatane Piko)© & イア (Vocaloid 3 - Ia)© - Happy Synthesizer
시유,シユ (Vocaloid - SeeU)© & 初音ミク (Vocaloid - Hatsune Miku)© - Happy Synthesizer
歌手音ピコ( Vocaloid 2 - Utatane Piko)© & イア (Vocaloid 3 - Ia)© - Happy Synthesizer
カル (Vocaloid 3 - Cul)© & 蒼姫ラピス (Vocaloid 3 - Aoki Lapis)© - Happy Synthesizer
Vocaloid Megurine Luka & Megpoid Gumi / Вокалоид Лука Мегурине и Мегпоид Гуми - Happy Synthesizer
Vocaloid Kagamine Len & Kuroneko (96neko) / Вокалоид Кагамине Лен & Куронеко - Happy Synthesizer
Megurine Luka & Megpoid Gumi / Мегурине Лука и Мегпоид Гуми / [AниGame] - ML&MG / Happy Synthesizer
시유,シユ (Vocaloid - SeeU)© & 初音ミク (Vocaloid - Hatsune Miku)© - Happy Synthesizer
Vocaloid Megurine Luka & Megpoid Gumi / Вокалоид Лука Мегурине и Мегпоид Гуми - Happy Synthesizer
Nico Nico Chorus [*Paco ＆Neuta、kana ＆梢依 , えみぃ ＆ non, ひななた ＆ 導飛...] - Happy Synthesizer [...SAK ＆ GEM、月乃紫音 ＆apo*、彩＆ななひら, 色葉 ＆ そら 、ルカ ＆ GUMI]