How to create custom dynamic markings

While it is trivial to create individual dynamic markings, if a more complex dynamic is required that LilyPond does not offer 'as standard' then it is quite easy to create your own. This also has the advantage of centering correctly without the need for more complex h-align positioning.

\version "2.24"

%% http://lsr.di.unimi.it/LSR/Item?id=789

% Based on http://lsr.di.unimi.it/LSR/Snippet?id=382
% the #:hspace value controls the amount of space between each dynamic symbol.

dynamicOne = #(make-dynamic-script (markup #:line ( 
             #:dynamic "f" 
             #:dynamic "z" 
             #:dynamic "p" )))

dynamicTwo = #(make-dynamic-script (markup #:line ( 
             #:dynamic "p" #:hspace -0.5 
             #:dynamic "z"  #:hspace -0.5 
             #:dynamic "f"  #:hspace -0.5 
             #:dynamic "z"  #:hspace -0.5 
             #:dynamic "p" )))

dynamicThree = #(make-dynamic-script (markup #:line ( 
             #:dynamic "s" #:hspace -0.8 
             #:dynamic "f" #:hspace -0.8 
             #:dynamic "z" #:hspace -0.8 
             #:dynamic "z" #:hspace -0.8  
             #:dynamic "z" #:hspace -0.8  
             #:dynamic "z"  #:hspace -0.8  
             #:dynamic "p" )))

\relative c'' {
  c1\dynamicOne c2 c c1\dynamicTwo c2 c c1\dynamicThree
}