Taking from the website http://project-andante.com/ (guessing that's where you got the info from as well)
The metadata is:
Artist: +α/あるふぁきゅん。
Romanised: +a/Alfakyun.
Song Title: calling
Place かめりあ Camellia in tags
The tracklist shows [Vocalist] / [Composer], those are separate fields over there:
As seen below:
There's like +α/あるふぁきゅん。 on Twitter and +α/あるふぁきゅん。 on YouTube but regardless, they show no spacing between what comes before and after the /
The metadata is:
Artist: +α/あるふぁきゅん。
Romanised: +a/Alfakyun.
Song Title: calling
Place かめりあ Camellia in tags
The tracklist shows [Vocalist] / [Composer], those are separate fields over there:
As seen below:
There's like +α/あるふぁきゅん。 on Twitter and +α/あるふぁきゅん。 on YouTube but regardless, they show no spacing between what comes before and after the /