diff --git a/picard/script/functions.py b/picard/script/functions.py
index 2d6debc35..46f419a4c 100644
--- a/picard/script/functions.py
+++ b/picard/script/functions.py
@@ -1536,13 +1536,16 @@ def func_cleanmulti(parser, multi):
 
 
 def _type_args(_type, *args):
-    haystack = set((args))
+    haystack = set()
+    # Automatically expand multi-value arguments
+    for item in args:
+        haystack = haystack.union(set(x for x in item.split('; ')))
     _typer = None
     if _type == 'int':
         _typer = int
     elif _type == 'float':
         _typer = float
-    elif _type == 'text':
+    elif _type in ('text', 'ncase'):
         pass
     else:
         # Unknown processing type
@@ -1554,19 +1557,30 @@ def _type_args(_type, *args):
 
 def _extract(_func, _type, *args):
     try:
-        return str(_func(_type_args(_type, *args)))
+        haystack = _type_args(_type, *args)
     except ValueError:
         return ""
 
+    if _type == 'ncase':
+        op = operator.lt if _func == min else operator.gt
+        val = None
+        for item in haystack:
+            if val is None or op(item.lower(), val.lower()):
+                val = item
+        return str(val)
+
+    return str(_func(haystack))
+
 
 @script_function(documentation=N_(
     """$min(type,x,...)
 
 Returns the minimum value using the comparison specified in `type`.
-Possible values of `type` are "int" (integer), "float" (floating point) and
-"text" (case-sensitive text).
+Possible values of `type` are "int" (integer), "float" (floating point),
+"text" (case-sensitive text) and "ncase" (case-insensitive text).
 
-Can be used with an arbitrary number of arguments.
+Can be used with an arbitrary number of arguments.  Multi-value arguments
+will be expanded automatically.
 
 _Since Picard 3.0_"""
 ))
@@ -1578,10 +1592,11 @@ def func_min(parser, _type, x, *args):
     """$max(type,x,...)
 
 Returns the maximum value using the comparison specified in `type`.
-Possible values of `type` are "int" (integer), "float" (floating point) and
-"text" (case-sensitive text).
+Possible values of `type` are "int" (integer), "float" (floating point),
+"text" (case-sensitive text) and "ncase" (case-insensitive text).
 
-Can be used with an arbitrary number of arguments.
+Can be used with an arbitrary number of arguments.  Multi-value arguments
+will be expanded automatically.
 
 _Since Picard 3.0_"""
 ))
diff --git a/test/test_script.py b/test/test_script.py
index 79aaacc8b..07e358a65 100644
--- a/test/test_script.py
+++ b/test/test_script.py
@@ -2242,14 +2242,28 @@ class ScriptParserTest(PicardTestCase):
         self.assertScriptResultEquals("$min(float,2,3)", "2.0", context)
         self.assertScriptResultEquals("$min(float,2,1,3)", "1.0", context)
         self.assertScriptResultEquals("$min(float,2,1.1,3)", "1.1", context)
+        self.assertScriptResultEquals("$min(float,1.11,1.1,1.111)", "1.1", context)
         self.assertScriptResultEquals("$min(float,2,1,a)", "", context)
         self.assertScriptResultEquals("$min(float,2,,1)", "", context)
         self.assertScriptResultEquals("$min(float,2,1,)", "", context)
 
-        # Test case sensitive arguments
+        # Test 'ncase' processing
+        self.assertScriptResultEquals("$min(ncase,a,B)", "a", context)
+        self.assertScriptResultEquals("$min(ncase,c,A,b)", "A", context)
+
+        # Test case sensitive arguments with 'text' processing
         self.assertScriptResultEquals("$min(text,A,a)", "A", context)
         self.assertScriptResultEquals("$min(text,a,B)", "B", context)
 
+        # Test multi-value arguments
+        context['mv'] = ['y', 'z', 'x']
+        self.assertScriptResultEquals("$min(text,%mv%)", "x", context)
+        self.assertScriptResultEquals("$min(text,y; z; x)", "x", context)
+        self.assertScriptResultEquals("$min(text,a,%mv%)", "a", context)
+        self.assertScriptResultEquals("$min(text,a,y; z; x)", "a", context)
+        self.assertScriptResultEquals("$min(int,5,4; 6; 3)", "3", context)
+        self.assertScriptResultEquals("$min(float,5.9,4.2; 6; 3.35)", "3.35", context)
+
         # Test invalid processing types
         self.assertScriptResultEquals("$min(,A,a)", "", context)
         self.assertScriptResultEquals("$min(unknown,a,B)", "", context)
@@ -2297,14 +2311,28 @@ class ScriptParserTest(PicardTestCase):
         self.assertScriptResultEquals("$max(float,2,3)", "3.0", context)
         self.assertScriptResultEquals("$max(float,2,1.1,3)", "3.0", context)
         self.assertScriptResultEquals("$max(float,2,1,3.1)", "3.1", context)
+        self.assertScriptResultEquals("$max(float,2.1,2.11,2.111)", "2.111", context)
         self.assertScriptResultEquals("$max(float,2,1,a)", "", context)
         self.assertScriptResultEquals("$max(float,2,,1)", "", context)
         self.assertScriptResultEquals("$max(float,2,1,)", "", context)
 
-        # Test case sensitive arguments
+        # Test 'ncase' processing
+        self.assertScriptResultEquals("$max(ncase,a,B)", "B", context)
+        self.assertScriptResultEquals("$max(ncase,c,a,B)", "c", context)
+
+        # Test case sensitive arguments with 'text' processing
         self.assertScriptResultEquals("$max(text,A,a)", "a", context)
         self.assertScriptResultEquals("$max(text,a,B)", "a", context)
 
+        # Test multi-value arguments
+        context['mv'] = ['y', 'z', 'x']
+        self.assertScriptResultEquals("$max(text,%mv%)", "z", context)
+        self.assertScriptResultEquals("$max(text,y; z; x)", "z", context)
+        self.assertScriptResultEquals("$max(text,a,%mv%)", "z", context)
+        self.assertScriptResultEquals("$max(text,a,y; z; x)", "z", context)
+        self.assertScriptResultEquals("$max(int,5,4; 6; 3)", "6", context)
+        self.assertScriptResultEquals("$max(float,5.9,4.2; 6; 3.35)", "6.0", context)
+
         # Test invalid processing types
         self.assertScriptResultEquals("$max(,A,a)", "", context)
         self.assertScriptResultEquals("$max(unknown,a,B)", "", context)