Putting parentheses around a note inside a chord

As children do not always have hands large enough, say, to plays octavas when studying piano, or anything else, it can be useful to add parentheses around a low note for example. In this snippet, the “parenthesized” note is made a bit smaller using the \tweak command on the #'font-size property.

\version "2.24"

%% http://lsr.di.unimi.it/LSR/Item?id=283


{ 
  \clef bass
  < f \parenthesize \tweak font-size #-1 f, >2
}