The Concluding prayers
... are the same as on a Shabbat Evening (Erev Shabbat) Service. So use what you are used to do there.
CONCLUDING PRAYERS
Main Content
ALEINU
Can be read in silence, only the first words would then be said or sung. But many congregations have a tune for it.
KADDISH
Is read by mourners. If no mourners are present, the leader of the service READs it.
ADON OLAM
Can be chanted to almost any tune you know. Sometimes people use musical tunes or folk tunes for it.
the end.
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