http://www.youtube.com/watch?v=kpvR_oDVyd4
http://www.youtube.com/watch?v=39IGH-HIDzs
http://www.youtube.com/watch?v=fxg-SIQJv6o
http://www.youtube.com/watch?v=VNdGigI9LLw
Acchan said something about Takamina? Sorry I can't translate though
it's around 2.25 ^-^
EDIT found translation:
Bokura no Music- Acchan x Tokunaga-san fangirling about Minami
Tokunaga-san: Takamina is like a sister to me.
Acchan: Takamina!? I'm so jealous of your relationship with her.
Tokunaga-san: Takamina... Takamina, that girl is said to have great leadership but she is really girly and childish and fawns over you.
Acchan: Hahahaha!
Acchan: Wow!! How did you know?
Tokunaga-san: But in AKB she has great leadership so...
Acchan: Yeah, she never gives up.
Tokunaga-san: She really is a girl, Takamina.
Acchan: Hahaha
Acchan: Its weird, normally in front of every she would be like "YOU GUYS!!" so towards people she can be spoiled she changes A LOT. And her way of speaking changes~
(both of them start leaning forward laughing or something XD)
Tokunaga-san: If I were in AKB, it would have probably been like "TOKUNAGA-SAN!!" (loud and strong), but when she actually comes to me it's more like "Tokunaga-san..." (acting all cute and innocent)
Acchan: HAHAHAHHAHAHA!!! (the time when Acchan seems so happy and starts shaking her legs and shaking her index finger like a wand :D)
cr: http://chibi-midgetlove.tumblr.com/post/55917085225/bokura-no-music-acchan-x-tokunaga-san-fangirling-about (http://chibi-midgetlove.tumblr.com/post/55917085225/bokura-no-music-acchan-x-tokunaga-san-fangirling-about)