\version "2.14.2"

DrumPatternA = {
	\drummode {
		<<
			{ \repeat unfold 8 hh8 }
			\\
			{ bd4 sn4 bd4 sn4 }
		>>
	}
}

DrumPatternB = {
	\drummode {
		<<
			{ \repeat unfold 4 hh4 }
			\\
			{ bd8 bd8 sn4 bd8 bd8 sn4 }
		>>
	}
}

DrumPart = {
	{ \repeat unfold 2 \DrumPatternA }
	{ \repeat unfold 2 \DrumPatternB }
	{ \repeat unfold 2 \DrumPatternA }
	{ \repeat unfold 2 \DrumPatternB }
}

\score {
	\new DrumStaff \DrumPart

	\layout {}

	\midi {}
}