>> I code \stemUp for for the second group. It works but all subsequent
>> stems are all UP. How can I stop the \stemUp for next measure onward?
>>
>
> You can "release" the stems again with \stemNeutral.
>
> But I'm not sure if you should use \stemUp in the first place. Maybe you
> should actually use \voiceOne, \voiceTwo etc. and \oneVoice?
Ming, may I politely suggest you read the Learning Manual?
More or less *ALL* of your recent questions are answered there.
The Learning Manual is considered a mandatory reading.
Kind regards,
Michael
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