Music for background in presentation

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I have a presentation for kids and i want to have music go all the way
through with out stoping is there a way to do that? I highlighted all slides
pushed insert music add music and the music only stays on the 1st slide. This
is for preschool and kindergarden now later want to do for the older kids.

help me please

 

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I have found my own answer to my question. doing more research i am up for
more tips though. forgive me i iam new at this whole thing.