Generate a playlist from a plain text file with songs. Using beets database to query file paths

generate_pl.sh

#!/bin/bash

music_path="/mnt/media/music"

while read line
do
  song=$(echo $line | sed 's/(.*)//g')
  artist=$(echo ${song% - *} | sed 's/ *$//')
  title=$(echo ${song#* - } | sed 's/ *$//')
  if [ -n "$title" ]; then
    match=$(beet ls -p artist:"$artist" title:"$title")
    echo "Artist: $artist Title: $title"
    if [ -n "$match" ]; then
      match=${match#${music_path}/}
      echo $match >> playlist_matched.m3u
    else
      echo $line >> playlist_missing.txt
    fi
  fi
done < $1

songs.txt

The Black Angels - Entrance Song
Caribou - Odessa
LCD Soundsystem - Dance Yrself Clean
Portugal. The Man - Evil Friends
Toro Y Moi - Still Sound
Yelle - Ce Jeu
Young the Giant - My Body
Serebro - Mi Mi Mi