Nippon Ichi will be at the Comiket 91 and going to brings the Refrain no Chika Meikyuu to Majo no Ryodan Soundtrack CD to it which is available only on the Amazon Japan.
The CD includes 17 tracks from the PS Vita game which released on June 23, 2016 in Japan.
The price will be 3000 Yen + tax same on the Amazon Japan but you don’t need to wait for the shipping. Cover can be found in the gallery and here is the tracklist:
6.More Than Words
7.Labyrinth of the Refrain
10.A the ha lluri da～PF
17.A the ha lluri da
Product details: http://www.tenpei.net/misskissdisc/004-refrain.html