Vertically aligned dynamics and textscripts

For all DynamicLineSpanner objects (i.e., hairpins and dynamic texts), the vertical minimum distance between their reference line and the staff is given by the value in the staff-padding property, unless other notation elements forces them to be farther away. Setting this property to a sufficiently large value aligns the dynamics.

The same idea, together with \textLengthOn, is used to align text scripts along their baseline.

\version "2.24"

music = \relative c' {
  a'2\p b\f
  e4\p f\f\> g, b\p
  c2^\markup { \huge gorgeous } c^\markup { \huge fantastic }
}

{
  \music
  \break
  \override DynamicLineSpanner.staff-padding = 3
  \textLengthOn
  \override TextScript.staff-padding = 1
  \music
}