Horizontal spacing at the left of each staff

[Thomas Baruchel]

Hi, I removed many engravers with the code below, and now the first note
on each staff (at the left) is completely at the beginning of the staff
without any horizontal spacing before. How can I have some left indentation
INSIDE the staff. Regards.


\layout {
  indent=0
  \context {
    \PianoStaff
    \remove "System_start_delimiter_engraver"
  }
  \context {
    \Staff
    \remove "Bar_engraver"
    \remove "Time_signature_engraver"
  }
  \context {
    \Score
    \remove "Bar_number_engraver"
    \remove "System_start_delimiter_engraver"
    \override SpacingSpanner #'shortest-duration-space = #1.5
  }
}