Piano template with centered dynamics

Many piano scores have the dynamics centered between the two staves. Using the Dynamics context this is quite easy to achieve.

\version "2.24"

global = {
  \key c \major
  \time 4/4
}

upper = \relative c'' {
  \clef treble
  a4 b c d
}

lower = \relative c {
  \clef bass
  a2 c
}

dynamics = {
  s2\fff\> s4 s\!\pp
}

pedal = {
  s2\sustainOn s\sustainOff
}

\new PianoStaff = "PianoStaff_pf" <<
  \new Staff = "right" << \global \upper >>
  \new Dynamics = "dynamics" \dynamics
  \new Staff = "left" << \global \lower >>
  \new Dynamics = "pedal" \pedal
>>