National Orchid Garden, Singapore.

Aranda Majula = Arachnis Maggie Oei × Vanda insignis

Arachnis Maggie Oei = Arachnis hookeriana × Arachnis flos-aeris

Both Vanda and Arachnis are in the subtribe Aeridinae.

I don't remember whether the flowers were perfumed or not, but they may have been, like Papilionanda Mimi Palmer, another Vanda hybrid that can be seen (and smelled) at the National Orchid Garden.