I looked at zygopetalum photos and description and it is a good match. First one I have seen. The plant was given to me at a Orchid store 3 months ago. The clerk tough the plant was dying. I guess it liked my glasshouse conditions: light and high humidity.
Thank you for pointing it out. Yes, it is very fragrant, like a rich perfume. I would not have notice without you mention it. My greenhouse this month is more like a pizza oven, in-spite of fans, doors & windows open.
I am looking forward to September when I can enjoy more time there.