If you indent the query in it, you can run it based on it’s parent block as input.
So for example:
- parent block title
- meeting notes
- stuff
- query
Or make meeting notes the parent, whatever you prefer.
You can then use this as the query:
#+BEGIN_QUERY
{:title ["Query by page & alias"]
:query [:find (pull ?b [*])
:in $ ?parent %
:where
[?b :block/marker "TODO"]
(check-parent ?parent ?b)
]
:rules [
[(check-parent ?parent ?b)
[?b :block/parent ?parent]
]
[(check-parent ?parent ?b)
[?b :block/parent ?t]
(check-parent ?parent ?t)
]
]
:inputs [:parent-block]
}
#+END_QUERY
Disclaimer: I did not test this. I wrote it all on my phone by memory.