It seems that nobody has paid much attention to this album, because there were some inaccuracies in the information submitted.
First, N響団友オーケストラ is the orchestra mentioned in the
back scan. It goes without saying that this
formation is not the usual NHK Symphony Orchestra, so it's better not to mix them up.
Without better scans, I can't be completely sure about this, but I highly doubt that the current title of the album is correct. I mean, the most widespread title for this album is simply "桃太郎電蓄II 古典的名盤" and, evidently, there is nothing written there that can be translated as "Hudson Soft Orchestra". I don't know what's the source for that part of the title but I think it's just an error.
Anyway, a full set of scans would be of great help...