pushing items "through" or "beyond" other contexts

[Kieren MacMillan]

Hello all,

No compilable code/snippet here… just a thought-experiment/question for 
discussion.

Is there any way (currently possible, or relatively easily coded) that items in 
one context can be independently pushed “through” or “beyond” other contexts?

As one (obvious) example, say I start with

 \new PianoStaff <<
   \new Staff = “upper” \upperStuff
   \new Dynamics = “dyn” \centredDynamics
   \new Staff = “lower” \lowerStuff
>>

Now let’s say I want one particular dynamic (in the centred context) to appear 
*above* the upper staff. I would love to write

 \once \alignAboveContext = “upper” s4\p

or whatever. (Right now, I just use the edition-engraver and an extra-offset 
tweak.)

Thoughts?

Thanks,
Kieren.
________________________________

Kieren MacMillan, composer
‣ website: www.kierenmacmillan.info
‣ email: address@hidden