Add cmus support to getsong

fetch

@@ -839,7 +839,14 @@ getmemory () {
 
 # Get song
 getsong () {
-    song=$(mpc current 2>/dev/null || printf "%s" "Unknown")
+    if type -p mpc >/dev/null 2>&1; then
+        song="$(mpc current)"
+    elif type -p cmus >/dev/null 2>&1; then
+        song="$(cmus-remote -Q | grep "tag artist\|title")"
+        song=${song/tag artist }
+        song=${song/tag title/-}
+        song=${song//[[:space:]]/ }
+    fi
 }
 
 # Get Resolution