Burrageara Nelly Isler 'Swiss Beauty'. It is advertised as having fragrant flowers and indeed they are, through the day, (my DW says nutmeg and lemon) It is its first time blooming and only has 4 blooms but can be smelled across the room at times. It does take a few days for the fragrance to develop.
That's lovely! I have admired Nelly Isler for a long time. But I don't do well with Oncidium types for some reason, so I have not got one. I do have a Beallara Peggy Ruth Carpentar 'Morning Joy' that blooms for me usually, so maybe I should be bold and try it.