\override Voice.Beam.breakable = ##t
\once \override Voice.Beam.grow-direction = #RIGHT
a32[ b c d \bar "" \break e f g a b c d e f g a ] \bar "|"
\override Voice.Beam.breakable = ##t
\once \override Voice.Beam.grow-direction = #RIGHT
a32[ b c d \bar "" \break e f g a b c d e f g a ] \bar "|"