from all the BGM already released in early access, I get the feeling that it was composed by the same comoser of FFXIV, 植松 伸夫(Nobuo Uematsu) or 祖堅 正慶(Masayoshi Soken). The paragraph in the main theme's beginning have great resemblance as FFXIV's maintheme songs.and the vocal part also sounds familier if you have a taest of theme songs of FFXIV
