bella=\drummode{\clef percussion \time 2/2  cb4 agh cb8 agh r cb r agh agh cb r agh r agh  ||}
bellb=\drummode{\clef percussion \time 2/2 cb4 cb r8 agh r cb r agh r cb r agh r agh  ||}
bellc=\drummode{\clef percussion \time 2/2  cb4 agh r8 agh r cb r agh agh cb r agh r agh  ||}
\score {
<<
      \new  DrumStaff \with {	drumStyleTable = #threebells-style  }
     <<
	\new DrumVoice { \bella }
     >>
      \new  DrumStaff \with {	drumStyleTable = #threebells-style }
     <<
	\new DrumVoice { \bellb }
     >>
      \new  DrumStaff \with {	drumStyleTable = #threebells-style }
     <<
	\new DrumVoice { \bellc }
     >>

>>
	\layout {indent=0}
}