More messing around with mono mode

crowbx.c

@@ -385,12 +385,17 @@ void mono_note_off(uint8_t n) {
 		return;
 	}
 
+	// Note n is currently playing.
 	l_delete(&mono.held_notes, n);
-	mono_set_pitch();
+	if (l_empty(&mono.held_notes)) {
+		for_each_voice (v) { gate_off(v); }
+		return;
+	}
 
-	void (*f)(uint8_t) = l_empty(&mono.held_notes) ? gate_off : gate_on;
-	for (uint8_t v = 0; v < NUM_VOICES; v++) {
-		f(v);
+	// Some other key is still held; play that one now.
+	mono_set_pitch();
+	for (uint8_t v = mono.disabled_voices; v < NUM_VOICES; v++) {
+		gate_on(v);
 	}
 }