\version "2.19.65"

\include "mergerestsengraver.ily"

\new Staff \with {
  \magnifyStaff #1/2
  \consists #Merge_rests_engraver_corrected
} <<
  { \compressFullBarRests R1 r1 R1*14 r2 r4 r }
  \\
  { R1 r1 R1*14 r2 r4 r }
>>

\new Staff \with {
  \magnifyStaff #1
  \consists #Merge_rests_engraver_corrected
} <<
  { \compressFullBarRests R1 r1 R1*14 r2 r4 r }
  \\
  { R1 r1 R1*14 r2 r4 r }
>>

\new Staff \with {
  \magnifyStaff #2
  \consists #Merge_rests_engraver_corrected
} <<
  { \compressFullBarRests R1 r1 R1*14 r2 r4 r }
  \\
  { R1 r1 R1*14 r2 r4 r }
>>