[puzzle?] fortix [24h left]

I suddenly remembered that I needed to give this away so here is a puzzle for fortix, CV 0,O1.
End on the 7th at 10AM.
Usual rules apply, I won't be giving hints since it's quite easy.

Since it seems everyone has given up here's some hints:
-It's a unique musical instrument (she conceived it and is the only one using it)
-you won't find the answer on english-speaking website but on one of the sites linked in youtube description
-you don't have to understand japanese, knowing that Gt. means guitar, Ba. means Bass is quite enough
-the word is d_____t