indicating rhythmic equivalence

[Paul Scott]

A typical indication of rhythmic equivalence is to mark dotted quarter = 
quarter or it's many variations.

The following is a simple modification of an example in 2.24.0 NR 1.3.3: 
Metronome marks.  I would think the part I added would give me the 
notation: quarter = dotted quarter.

Any ideas?

TIA,

Paul


\version "2.24.0"

\relative {
  \tempo \markup {
    Swing
    \hspace #0.4
    \rhythm { 8[ 8] } = \rhythm { \tuplet 3/2 { 4 8 } }
  }
  b8 g' c, d ees d16 ees d c r8
  \tempo \markup {
    Swing
    \hspace #0.4
    \rhythm { 4 } = \rhythm { 4. }
  }
  \time 3/4 c'2.
}