PLEASE PLEASE PLEASE HELP ME Poetic Devices- Which literary devices are used and what do they mean?

There's a grandmother talking to me
There's a grandmother talking to you
There's a grandmother singing to me
There's a grandmother singing to you

and if you stop and listen
you might hear what you been missing
and if you stop and listen
you might hear what you been missing

and i hear big mom
telling me another story
and i hear big mom
singing me another story

and she says

ill be coming back
ill be coming back
ill be coming back for you
ill be coming back
ill be coming back
ill be coming back for you
ill always come back for you