[Amendment10]

I understand that Notre Dame pipe organ survived the fire, corrections welcome.

Here is relatively short (7:14) video, not office friendly, of Notre Dame organist Olivier Latry improvising for Sunday Mass. Pipework is behind him, shown a bit later.

Again, not office friendly. Lower computer volume.

Olivier Latry Final improvisation of the Sunday Mass - Notre Dame de Paris

[Winniesboy]

I understand that Notre Dame pipe organ survived the fire, corrections welcome.

Yes, Cavaillé-Coll's masterpiece has not only survived the fire, it wasn't even touched by water, which wold have been equally destructive. It will have to be completely rebuilt, however. It was last restored in 2014, when all 8000+ pipes were removed for cleaning, so there's very recent experience of what's required. The registration is managed by a modern computer system, but replacing that would be the easy part. The console is also modern and replaceable, but it looks as if that may not be necessary.