Over on their YouTube channel, Comcept has added a new video featuring gameplay footage of what should be the now more-or-less completed version of Mighty No. 9 in action.
In addition to some gameplay footage featuring English text and Japanese speech, there are also annotations to highlight who put together the background music you're listening to for particular sequences. Presented in the video are the following (via the YouTube description):
No.6 stage BGM : Ippo Yamada
No.4 stage BGM : Godspeed ( Masahiro Aoki )
No.3 stage BGM : Manami Matsumae
No.7 stage BGM : Takashi Tateishi
Which one do you like the most?
Thanks to Michael S for the tip!