Added bash version with fewer lines and potentially better performance

nowplaying.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+if [ $(playerctl status) = 'Playing' ]; then
+    a=$( playerctl metadata artist )
+    t=$( playerctl metadata title )
+    echo "$a - $t"
+fi
+
+exit 0

source_polybar.py

@@ -52,7 +52,7 @@ def main():
    
     [module/music]
     type = custom/script
-    exec = /home/ferit/scripts/nowplaying.py
+    exec = /home/ferit/scripts/nowplaying.sh
     tail = true
     interval = 2