I think there's now decent error detection for posting music.

ratatoskr.sh

@@ -103,6 +103,14 @@ scrobble_music() {
 # Post music with -M flag requires playerctl.
 post_music() {
     local text="$(playerctl metadata -f 'Now playing "{{title}}" by "{{artist}}" from "{{album}}" via "{{playerName}}"')"
+    text="${text//Now playing \"\"/Now Playing}"
+    text="${text// by \"\"/}"
+    text="${text// from \"\"/}"
+    if [[ "${text}" =~ ^"Now playing via" ]]; then
+        echo "Error, no music was detected. Maybe it is not properly tagged?"
+        play_sound error
+        exit 1
+    fi
     local link="$(playerctl metadata -f '{{xesam:url}}')"
     if [[ "${link}" =~ ^file:// ]]; then
         link="https://www.youtube.com/results?search_query=$(playerctl metadata -f '{{artist}} {{title}}' | urlencode -b)"
@@ -230,7 +238,6 @@ done
 mkdir -p "${configPath}/soundpacks"
 
 # Keep track of the backgrounded loop
-bgLoop=1
 
 # Associative array of command line parameters and short description of what they do.
 declare -A command=(
@@ -272,8 +279,6 @@ done
 
 # Main loops
 # Display timelines and requested information.
-# Important, set bgLoop to 0 or  this loop will not close with the program
-bgLoop=0
 while : ; do
     show_timeline
     sleep "${interval:-300}"