timeStatement:
t [ + ] expression
noteStatement:
partName , ( typeAndTag ) [ , parameters ]
typeAndTag:
duration [ , noteTag ]
noteOn , noteTag
noteOff , noteTag
noteUpdate [ , noteTag ]
mute
duration:
expression
noteTag:
integerExpression
parameters:
parameter [ , parameters ]
parameter:
parameterName : parameterValue
parameterName:
identifier
parameterValue:
expression