how does the final voting happens for the award you mentioned?
After nominees have been determined, final voting ballots are sent to NARAS voting members, who may then vote in the general fields and in no more than nine of the 30 fields.  Ballots are tabulated secretly .The winners are announced at the Grammy Awards.
Grammy Award
After nominees have been determined, final voting ballots are sent to NARAS voting members, who may then vote in the general fields and in no more than nine of the 30 fields. Members are encouraged, but not required, to vote only in their fields of expertise. Ballots are tabulated secretly by the major independent accounting firm Deloitte Touche Tohmatsu. Following the tabulation of votes the winners are announced at the Grammy Awards. 
who is the writer of 'all through the night'? Jules Shear. is it a single or part of an album? It is part of an album. which album is it from? Though it was originally intended for the album "Watch Dog", it was included in "She's So Unusual". has the latter album won any awards? It won the Grammy Award for Best Recording Package and Best New Artist. did they organise a tour? Yes, a world tour was arranged to mark the 30th Anniversary of "She's So Unusual".
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Grammy Award [SEP] Final voting
After nominees have been determined, final voting ballots are sent to NARAS voting members, who may then vote in the general fields and in no more than nine of the 30 fields. Members are encouraged, but not required, to vote only in their fields of expertise. Ballots are tabulated secretly by the major independent accounting firm Deloitte Touche Tohmatsu. Following the tabulation of votes the winners are announced at the Grammy Awards. The recording with the most votes in a category wins and it is possible to have a tie (in which case the two or more nominees who tie are all considered winners).