How change the default spacing between staff blocks

[mikel]

Hi everyone,

Just a easy question:
How can we further separate the different lines that make up a score?

I mean a score for a single melodic instrument. Sometimes I find the 
music too close together, and I wish I could change the default spacing.

\version "2.24.0"
violin = \relative {
  a b c d a b c d a b c d a b c d | \break
  % This space is I want to change
  a b c d a b c d a b c d a b c d | \break
  % This space is I want to change
  a b c d a b c d a b c d a b c d | \break
  .......
}

\score {
  \new Staff {
    \new Voice {
      \violin
    }
  }
  \layout {
  }
}


I haven't found anything in the documentation about it, it only refers 
to staff groups.

Thanks in avance!