I'm not sure it would be tall enough, and it's not really fragrant, but Cloud Ten is a really nice white climber that tolerates pretty much full shade in my garden, and blooms well in it. I'd also take a look at the hybrid musks - a lot of them make nice climbers and most are fairly shade tolerant.

What do you think of Lady of the Lake? While not exactly white OR yellow, it is a mix with some peachy pink notes also. Really pretty and mine is doing ok in about three hours of sun

Last of the Lake

Ugh. I hate typos🤦🏻‍♀️ That should say Lady of the Lake

Lol, I knew what you meant! I've looked at that one before! It's beautiful.

How about Ghislaine de Feligonde?

Petal count is a little higher, HMF says 17-25 petals, but otherwise she might be a good match for your criteria:

https://www.helpmefind.com/rose/l.php?l=2.2947&tab=1

I wasn't sure that one was shade tolerant.

I haven't grown her, but in the HMF ratings her shade tolerance is rated as "excellent".

https://www.helpmefind.com/rose/l.php?l=2.2947&tab=34

Ghislaine de Feligonde is doing well with 4hr sun in my Seattle garden. I don't know where you live, but if you have hot summer, GdF would best be in part shade. It easily fades to white in fierce sun. It's also vigorous and reached 6' in three years from a tiny band plant.

Both photos were taken in Aug, and your can see its fabulous color changing.