SVWC-70354~5: THE SEVEN DEADLY SINS PRISONERS OF THE SKY ORIGINAL SOUNDTRACK

[MBgov1133]

The website credits Asami Tachibana for unreleased music (I'm assuming from audio dramas, possibly).

http://www.7-taizai-movie.net/sp/music/

It credits the composers as "Hiroyuki Sawano, Asami Tachibana and other", and considering disc 2 is a selection of tracks from the series, I wouldn't be surprised if some of KOHTA YAMAMOTO's tracks were on the album.

Though there is no direct credit for him yet, so I haven't added his name to the composer field on this page.