diff --git a/auto_editor/analyze.py b/auto_editor/analyze.py
index 03d53acea..4f6a3db70 100644
--- a/auto_editor/analyze.py
+++ b/auto_editor/analyze.py
@@ -149,16 +149,14 @@ def obj_tag(tag: str, tb: Fraction, obj: dict[str, Any]) -> str:
     return key
 
 
+@dataclass
 class Levels:
-    def __init__(
-        self, ensure: Ensure, src: FileInfo, tb: Fraction, bar: Bar, temp: str, log: Log
-    ):
-        self.ensure = ensure
-        self.src = src
-        self.tb = tb
-        self.bar = bar
-        self.temp = temp
-        self.log = log
+    ensure: Ensure
+    src: FileInfo
+    tb: Fraction
+    bar: Bar
+    temp: str
+    log: Log
 
     @property
     def media_length(self) -> int:
@@ -167,9 +165,7 @@ def media_length(self) -> int:
                 return len(arr)
 
             sr, samples = read(
-                self.ensure.audio(
-                    f"{self.src.path.resolve()}", self.src.label, stream=0
-                )
+                self.ensure.audio(f"{self.src.path.resolve()}", self.src.label, 0)
             )
             samp_count = len(samples)
             del samples
diff --git a/auto_editor/lang/palet.py b/auto_editor/lang/palet.py
index 2b64efadb..0d0401358 100644
--- a/auto_editor/lang/palet.py
+++ b/auto_editor/lang/palet.py
@@ -49,7 +49,7 @@ class ClosingError(MyError):
 LPAREN, RPAREN, LBRAC, RBRAC, LCUR, RCUR, EOF = "(", ")", "[", "]", "{", "}", "EOF"
 VAL, QUOTE, SEC, DB, DOT, VLIT = "VAL", "QUOTE", "SEC", "DB", "DOT", "VLIT"
 SEC_UNITS = ("s", "sec", "secs", "second", "seconds")
-METHODS = ("audio:", "motion:", "pixeldiff:", "subtitle:", "none:", "all/e:")
+METHODS = ("audio:", "motion:", "pixeldiff:", "subtitle:")
 brac_pairs = {LPAREN: RPAREN, LBRAC: RBRAC, LCUR: RCUR}
 
 str_escape = {
@@ -1334,6 +1334,20 @@ def attr(env: Env, node: list) -> Any:
     return my_eval(env, [node[2], node[1]])
 
 
+def edit_none() -> np.ndarray:
+    if "@levels" not in env:
+        raise MyError("Can't use `none` if there's no input media")
+
+    return env["@levels"].none()
+
+
+def edit_all() -> np.ndarray:
+    if "@levels" not in env:
+        raise MyError("Can't use `all/e` if there's no input media")
+
+    return env["@levels"].all()
+
+
 def my_eval(env: Env, node: object) -> Any:
     if type(node) is Sym:
         val = env.get(node.val)
@@ -1392,6 +1406,9 @@ def my_eval(env: Env, node: object) -> Any:
     "true": True,
     "false": False,
     "all": Sym("all"),
+    # edit procedures
+    "none": Proc("none", edit_none, (0, 0)),
+    "all/e": Proc("all/e", edit_all, (0, 0)),
     # syntax
     "lambda": Syntax(syn_lambda),
     "λ": Syntax(syn_lambda),
diff --git a/auto_editor/make_layers.py b/auto_editor/make_layers.py
index 7e334eaea..c33c54149 100644
--- a/auto_editor/make_layers.py
+++ b/auto_editor/make_layers.py
@@ -6,7 +6,7 @@
 
 import numpy as np
 
-from auto_editor.analyze import FileSetup
+from auto_editor.analyze import FileSetup, Levels
 from auto_editor.ffwrapper import FFmpeg, FileInfo
 from auto_editor.lang.palet import Lexer, Parser, env, interpret, is_boolarr
 from auto_editor.lib.data_structs import print_str
@@ -90,31 +90,40 @@ def make_av(
     return vtl, atl
 
 
-def run_interpreter(
-    text: str,
-    filesetup: FileSetup,
-    log: Log,
+def run_interpreter_for_edit_option(
+    text: str, filesetup: FileSetup
 ) -> NDArray[np.bool_]:
+    ensure = filesetup.ensure
+    src = filesetup.src
+    tb = filesetup.tb
+    bar = filesetup.bar
+    temp = filesetup.temp
+    log = filesetup.log
+
     try:
         parser = Parser(Lexer("`--edit`", text))
         if log.is_debug:
             log.debug(f"edit: {parser}")
 
         env["timebase"] = filesetup.tb
+        env["@levels"] = Levels(ensure, src, tb, bar, temp, log)
         env["@filesetup"] = filesetup
 
         results = interpret(env, parser)
-    except (MyError, ZeroDivisionError) as e:
-        log.error(e)
 
-    if len(results) == 0:
-        log.error("Expression in --edit must return a bool-array, got nothing")
+        if len(results) == 0:
+            raise MyError("Expression in --edit must return a bool-array, got nothing")
 
-    result = results[-1]
-    if not is_boolarr(result):
-        log.error(
-            f"Expression in --edit must return a bool-array, got {print_str(result)}"
-        )
+        result = results[-1]
+        if callable(result):
+            result = result()
+
+        if not is_boolarr(result):
+            raise MyError(
+                f"Expression in --edit must return a bool-array, got {print_str(result)}"
+            )
+    except MyError as e:
+        log.error(e)
 
     assert isinstance(result, np.ndarray)
     return result
@@ -276,7 +285,7 @@ def mut_set_range(arr: NDArray, _ranges: list[list[str]], index: Any) -> None:
 
     for i in map(str, inputs):
         filesetup = FileSetup(sources[i], ensure, len(inputs) < 2, tb, bar, temp, log)
-        has_loud = run_interpreter(method, filesetup, log)
+        has_loud = run_interpreter_for_edit_option(method, filesetup)
 
         if len(mark_loud) > 0:
             mut_set_range(has_loud, mark_loud, loud_speed)
diff --git a/auto_editor/subcommands/repl.py b/auto_editor/subcommands/repl.py
index 9e5b9ef48..af49fa4f5 100644
--- a/auto_editor/subcommands/repl.py
+++ b/auto_editor/subcommands/repl.py
@@ -5,7 +5,7 @@
 from fractions import Fraction
 
 import auto_editor
-from auto_editor.analyze import FileSetup
+from auto_editor.analyze import FileSetup, Levels
 from auto_editor.ffwrapper import FFmpeg, FileInfo
 from auto_editor.lang.palet import ClosingError, Lexer, Parser, env, interpret
 from auto_editor.lib.data_structs import print_str
@@ -77,9 +77,10 @@ def main(sys_args: list[str] = sys.argv[1:]) -> None:
         src = sources["0"]
         tb = src.get_fps() if args.timebase is None else args.timebase
         ensure = Ensure(ffmpeg, src.get_sr(), temp, log)
-        filesetup = FileSetup(src, ensure, strict, tb, Bar("none"), temp, log)
+        bar = Bar("none")
         env["timebase"] = tb
-        env["@filesetup"] = filesetup
+        env["@levels"] = Levels(ensure, src, tb, bar, temp, log)
+        env["@filesetup"] = FileSetup(src, ensure, strict, tb, bar, temp, log)
 
     print(f"Auto-Editor {auto_editor.version} ({auto_editor.__version__})")
     text = None