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#----------------------------------------------------------------------
# A base class for things that can be played at a given instant
# An onset < 0 implies the Event should be played immediately
#----------------------------------------------------------------------
class Event:
#-----------------------------------
# initialization
#-----------------------------------
def __init__( self, onset ):
self.onset = onset
#-----------------------------------
# playback (must be implemented by subclasses)
#-----------------------------------
def play( self ):
raise NotImplementedError
#-----------------------------------
# adjustment
#-----------------------------------
def adjustOnset( self, amount ):
self.onset += amount
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