- Fix bug with storing aliases for MIDI devices

Author: Simon Holliday

subsequence/composition.py

@@ -641,6 +641,7 @@ def __init__ (
 		self._is_live: bool = False
 		self._running_patterns: typing.Dict[str, typing.Any] = {}
 		self._input_device: typing.Optional[str] = None
+		self._input_device_alias: typing.Optional[str] = None
 		self._clock_follow: bool = False
 		self._clock_output: bool = False
 		self._cc_mappings: typing.List[typing.Dict[str, typing.Any]] = []
@@ -1357,6 +1358,7 @@ def midi_input (self, device: str, clock_follow: bool = False, name: typing.Opti
 		if self._input_device is None:
 			# First call: set primary input device (device 0)
 			self._input_device = device
+			self._input_device_alias = name
 			self._clock_follow = clock_follow
 		else:
 			# Subsequent calls: register additional input devices
@@ -2470,6 +2472,8 @@ async def _run (self) -> None:
 		# Also register the primary input (device 0) if one was configured.
 		if self._sequencer.input_device_name:
 			self._input_device_names[self._sequencer.input_device_name] = 0
+			if self._input_device_alias is not None:
+				self._input_device_names[self._input_device_alias] = 0
 
 		for dev_name, alias, cf in self._additional_inputs:
 			dev_idx = len(self._sequencer._input_devices)  # next index

tests/test_multi_device.py

@@ -575,9 +575,10 @@ def test_input_alias_resolves_in_cc_map(patch_midi_multi) -> None:
 	comp.midi_input("Input B", name="faders")
 	comp.cc_map(74, "filter", input_device="faders")
 
-	# Manually populate _input_device_names as _run() would, then call resolution.
+	# Manual setup for resolution (simulating what _run would populate after opening ports).
 	comp._input_device_names["Input A"] = 0
-	comp._input_device_names["keys"] = 0
+	if comp._input_device_alias:
+		comp._input_device_names[comp._input_device_alias] = 0
 	comp._input_device_names["Input B"] = 1
 	comp._input_device_names["faders"] = 1
 
@@ -597,7 +598,8 @@ def test_input_alias_resolves_in_cc_forward(patch_midi_multi) -> None:
 	comp.cc_forward(1, "cc", input_device="keys")
 
 	comp._input_device_names["Input A"] = 0
-	comp._input_device_names["keys"] = 0
+	if comp._input_device_alias:
+		comp._input_device_names[comp._input_device_alias] = 0
 
 	for fwd in comp._cc_forwards:
 		raw_in = fwd.get('input_device')