10.26.3 Can you answer these questions?

10.26.3.1 Best way to implement the "plus-distribution" for very long expressions?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=305979

I'm at my wits end here. Is there an efficient way to implement the following distribution into MMA: 
$$\int_0^y dx \frac{f(x)-f(y)}{y-x}$$ 
where $f/1-x$ can be analytically integrated. The difficulty ... 
[calculus-and-analysis] [performance-tuning] [distributions]
 

asked by Confuse-ray30 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=96205 Score of 2

10.26.3.2 Formatting control points for BSplineFunction

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=305899

I am trying to create an approximation to a level surface $F(u,v,w) = 0$ using BSplineFunction and control points sampled from the ContourPlot. I want to use these points to make a 2-variable ... 
[plotting] [list-manipulation]
                                                                                  

                                                                                  
 

asked by user192413 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=100628 Score of 1

10.26.3.3 Music notation in WL/Mathematica

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=305904

Is there any way to draw a musical staff with clefs, notes, etc. in the Wolfram Language? 
E.g., a simple grand staff like this one: 
 
Any links to relevant paclets, ResourceFunctions, etc. would be ... 
[sound] [notation]
 

asked by Zsombor Méder https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=93117 Score of 3