Kotobuki Tsumugi (Kotobuki Minako) - Come with Me!! (K-ON!! OST)
Kotobuki Tsumugi (Kotobuki Minako) - Yasai no Jounetsu (K-ON!! OST)
Kotobuki Tsumugi (Kotobuki Minako) - Yasai no Jounetsu Vocal OFF (K-ON!! OST)
Kotobuki Tsumugi (Kotobuki Minako) - Diary wa Fortissimo Vocal OFF (K-ON!! OST)
Kotobuki Tsumugi (CV: Kotobuki Minako) - Humming Bird
|VAK-ON|Kotobuki Tsumugi & Suzuki Jun - Сап, Двач! Мурмурмур или "Ламповая няша" :з
Houkago Tea Time (Tsumugi Kotobuki) - Honey sweet tea time
Kotobuki Tsumugi (CV: Kotobuki Minako) - "Let's Go" (Tsumugi Ver.) (『レッツゴー』(紬Ver.))
Kotobuki Tsumugi (Kotobuki Minako) - Diary wa Fortissimo (K-ON!! OST)
Kotobuki Tsumugi (Kotobuki Minako) - Come with Me!! Vocal OFF(K-ON!! OST)
Kotobuki Tsumugi (CV: Kotobuki Minako) - Dear My Keys ~Kenban no Mahou~ (Dear My Keys 〜鍵盤の魔法〜)
Hirasawa Yui, Akiyama Mio. Tainaka Ritsu, Kotobuki Tsumugi - Tenshi ni Fureta yo!!
Kotobuki Tsumugi - Honey Sweet Tea Time
Houkago Tea Time (Kotobuki Tsumugi) - Dear My Keys ~Kenban no Mahou~
Houkago Tea Time (Kotobuki Tsumugi) - Humming Bird
Houkago Tea Time (Kotobuki Tsumugi) - Diary wa Fortissimo
Houkago Tea Time (Kotobuki Tsumugi) - Yasei no Jounetsu
Kotobuki Minako - Let's Go (Tsumugi version)
K-on! Tsumugi Kotobuki - Dear My Keys ~Kenban no Mahou~
Houkago Tea Time - (K-on!!) - Tsumugi Kotobuki - Honey Sweet Tea Time
Tsumugi Kotobuki K-on!! - Yasei no Jounetsu
Tsumugi Kotobuki - Dear My Keys ~Kenban no Mahou~
Sakurakou K-ON Bu [Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi (CV: Toyosaki Aki, Hikasa Youko, Satou Satomi, Kot - Don't say "lazy"
Kotobuki Tsumugi (Kotobuki Minako) – K-ON! Character Image Song Series Vol. 4: Tsumugi Kotobuki - Dear My Keys ~Kenban no Mahou~
Kotobuki Tsumugi (Kotobuki Minako) – K-ON! Character Image Song Series Vol. 4: Tsumugi Kotobuki - Humming Bird
Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi, Nakano Azusa (CV: Toyosaki Aki, Hikasa Youko, Satou Satomi, Kotobuki - Fudepen Ballpen
Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi (CV: Toyosaki Aki, Hikasa Youko, Satou Satomi, Kotobuki Minako) - Fuwafuwa Time
Toyosaki Aki & Hikasa Youko & Satou Satomi & Kotobuki Minako & Taketatsu Ayana (HTT - Ho-kago tea time. Hirasawa Yui & Akiyama Mio & Tainaka Ritsu & Kotobuki Tsumugi & Nakano Azusa) - Fude Pen (Ballpoint Pen)
Hirasawa Yui (Toyosaki Aki) / Cho: Akiyama Mio (Hikasa Yoko), Tainaka Ritsu (Satou Satomi), Kotobuki Tsumugi (Kotobuki Minak - Fuwa Fuwa Time (OST K-on )
Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi, Nakano Azusa (CV: Toyosaki Aki, Hikasa Youko, Satou Satomi, Kotobuki - Fuwafuwa Time
Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Yoko), Tainaka Ritsu (CV: Sato Satomi) and Kotobuki Tsumugi (CV: Kotobuki Minako) - Don't say "lazy"
Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Yoko), Tainaka Ritsu (CV: Sato Satomi) and Kotobuki Tsumugi (CV: Kotobuki Minako) - Fuwa Fuwa Jikan (ふわふわ時間)
Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Yoko), Tainaka Ritsu (CV: Sato Satomi) and Kotobuki Tsumugi (CV: Kotobuki Minako) - Don't say "lazy" (TV SIZE)
Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Yoko), Tainaka Ritsu (CV: Sato Satomi) and Kotobuki Tsumugi (CV: Kotobuki Minako) - Cagayake!GIRLS
Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Yoko), Tainaka Ritsu (CV: Sato Satomi) and Kotobuki Tsumugi (CV: Kotobuki Minako) - Tsubasa wo Kudasai (翼をください)
Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Yoko), Tainaka Ritsu (CV: Sato Satomi), Kotobuki Tsumugi (CV: Kotobuki Minako) and Nakano Azusa (CV: Taketatsu Ayana) - Watashi no Koi wa Hotch Kiss (わたしの恋はホッチキス)
Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Yoko), Tainaka Ritsu (CV: Sato Satomi) and Kotobuki Tsumugi (CV: Kotobuki Minako) - Cagayake!GIRLS (TV SIZE)
Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Yoko), Tainaka Ritsu (CV: Sato Satomi), Kotobuki Tsumugi (CV: Kotobuki Minako) and Nakano Azusa (CV: Taketatsu Ayana) - Curry Nochi Rice (カレーのちライス)
Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Yoko), Tainaka Ritsu (CV: Sato Satomi), Kotobuki Tsumugi (CV: Kotobuki Minako) and Nakano Azusa (CV: Taketatsu Ayana) - Fude Pen ~Ballpoint Pen~ (ふでペン 〜ボールペン〜)
Vo: Hirasawa Yui (Toyosaki Aki) / Cho: Akiyama Mio (Hikasa Yoko), Tainaka Ritsu (Satou Satomi), Kotobuki Tsumugi (Kotobuki Minak - Fuwa Fuwa Time (Yui Main Vo.)<3
Sakurakou K-ON Bu [Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi, Nakano Azusa (CV: Toyosaki Aki, Hikasa Youko, Sat - Curry Nochi Rice (Yui MainVo.)
HO-KAGO TEA TIME [Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi, Nakano Azusa (CV: Toyosaki Aki, Hikasa Youko, Sato - GO! GO! MANIAC (Instrumental)
Sakurakou K-ON Bu [Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi (CV: Toyosaki Aki, Hikasa Youko, Satou Satomi, Kot - Fuwafuwa Time
Sakurakou K-ON Bu [Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi (CV: Toyosaki Aki, Hikasa Youko, Satou Satomi, Kot - Happy!? Sorry!!
HO-KAGO TEA TIME [Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi, Nakano Azusa] - GO! GO! MANIAC (Instrumental) [OP 2-1]
K-ON!! (TV-2) | HO-KAGO TEA TIME [Hirasawa Yui, Akiyama Mio, Tainaka Ritsu, Kotobuki Tsumugi, Nakano Azusa] - Listen!! (Instrumental) | ED1
Sakurakou K-ON Bu: Hirasawa Yui (CV: Toyosaki Aki), Akiyama Mio (CV: Hikasa Youko), Tainaka Ritsu (CV: Satou Satomi), Kotobuki T - Let's Go (Yui Mio Ritsu Tsumugi Azusa mix)
Tsumugi Kotobuki (Minako Kotobuki) — K-ON!! Character Image Songs: Tsumugi Kotobuki - Diary wa Fortessimo
Yui Hirasawa、Akiyama mio、Ritsu Tainaka、Tsumugi Kotobuki - Tenshi Ni Fureta Yo!(Movie「K-On!」Mix)
Yui Hirasawa、Akiyama mio、Ritsu Tainaka、Tsumugi Kotobuki - Tenshi Ni Fureta Yo!- Touched by an Angel! (Movie「K-On!」Mix)