Index: polemy/parse.d
==================================================================
--- polemy/parse.d
+++ polemy/parse.d
@@ -176,11 +176,11 @@
 		}
 		if( tryEat("@") )
 		{
 			auto lay = "@"~eatId("for layer ID");
 			eat("(", "for layered execution");
-			auto e = E(0);
+			auto e = Body();
 			eat(")", "after "~lay~"(...");
 			return new LayeredExpression(pos, lay, e);
 		}
 		if( tryEat("(") )
 		{

ADDED   sample/fizzbuzz.pmy
Index: sample/fizzbuzz.pmy
==================================================================
--- sample/fizzbuzz.pmy
+++ sample/fizzbuzz.pmy
@@ -0,0 +1,38 @@
+#
+# Not at all a good example of the usage of layers, but anyway...
+#
+# after implementing layered parameters, this may be improved.
+# (though still not a good example...)
+#
+
+@ 3 print(x) { @v(print("Fizz")) };
+@ 5 print(x) { @v(print("Buzz")) };
+@15 print(x) { @v(print("FizzBuzz")) };
+
+def fb(n, q3, q5, q15) {
+	if( q15 < 1 ) {
+		@15(print)
+	} else {
+		if( q5 < 1 ) {
+			@5(print)
+		} else {
+			if( q3 < 1 ) {
+				@3(print)
+			} else {
+				@v(print)
+			}
+		}
+	}(n);
+	let q3 = q3+1;
+	let q5 = q5+1;
+	let q15 = q15+1;
+
+	fb(
+		n+1,
+		if(q3<3){q3}else{0},
+		if(q5<5){q5}else{0},
+		if(q15<15){q15}else{0}
+	)
+};
+
+fb(0,0,0,0)