Talk:Volume 3, Chapter 8/@comment-30764484-20140123074535

Huh, so Mio actually does have two basses in the manga. I had always assumed that (starting with the second volume) her switching from a Precision Bass to a Jazz Bass (in identical colours) was a retcon, but in this chapter, in the part where Ritsu is talking about the time Mio got a scratch on her bass and freaked out, Ritsu says "on her very first bass", and the flashback picture of Mio has her P-Bass.