#!/bin/bash
set test="blah"

test=$(mp3info -p "%t" IWantToConquerThe?????.mp3 | sed -e "s@'@\\\'@g" -e "s@ @\\\ @g")

mv -v blah.mp3 "$test"


archimedes@Anduril:~$ test=blah
archimedes@Anduril:~$ test=$(mp3info -p "%t.mp3" IWantToConquerThe*.mp3)
archimedes@Anduril:~$ echo $test
I Want To Conquer The World.mp3
archimedes@Anduril:~$ mv blah.mp3 "$test"
archimedes@Anduril:~$ ls *.mp3
I Want To Conquer The World.mp3  IWantToConquerTheWorld-Orig.mp3