diff --git a/Jellyfin.Plugin.SmartPlaylist/Lisp/Compiler/Parser.cs b/Jellyfin.Plugin.SmartPlaylist/Lisp/Compiler/Parser.cs
index 7dda9c4..e093266 100644
--- a/Jellyfin.Plugin.SmartPlaylist/Lisp/Compiler/Parser.cs
+++ b/Jellyfin.Plugin.SmartPlaylist/Lisp/Compiler/Parser.cs
@@ -211,7 +211,7 @@ namespace Jellyfin.Plugin.SmartPlaylist.Lisp.Compiler {
         public override string ToString() {
             return _value.ToString();
         }
-        public static Atom FromBase(object o) {
+        public static Expression FromBase(object o) {
             switch (o) {
                 case bool b:
                     return new Boolean(b);
@@ -219,6 +219,8 @@ namespace Jellyfin.Plugin.SmartPlaylist.Lisp.Compiler {
                     return new Integer(i);
                 case string s:
                     return new String(s);
+                case IEnumerable<object> e:
+                    return new List(e.Select(x => Object.FromBase(x)).ToList());
                 default:
                     return new Object(o);
             }
@@ -267,6 +269,9 @@ namespace Jellyfin.Plugin.SmartPlaylist.Lisp.Compiler {
         public Parser(StringTokenStream tokens) {
             _sts = tokens;
         }
+        public Parser(string s) {
+            _sts = StringTokenStream.generate(s);
+        }
 
         public Expression parse() {
             Token<string> token = _sts.Get();