move all mp3 files from my download folder into my music folder, excluse files that have a shorter duration than 1 minute

bash
for i in ~/Downloads/*.mp3; do
  dur=$(ffmpeg -i "$i" 2>&1 | grep "Duration"| cut -d ' ' -f 4 | sed s/,//)
  hour=$(echo $dur | cut -d ':' -f 1)
  min=$(echo $dur | cut -d ':' -f 2)
  sec=$(echo $dur | cut -d ':' -f 3)
  if ((min>0)) || ((hour>0)); then
    cp "$i" ~/Music/
  fi
done