<filename>model/__init__.py
# from model.beat import (
#     TatumTrackingModelState,
#     TatumTrackingGrammarModelState
# )
#
# from model.voice import (
#     VoiceSplittingModelState,
#     VoiceSplittingGrammarModelState
# )
#
# from model.hierarchy import (
#     HierarchyModelState,
#     HierarchyGrammarModelState
# )
#
# from model.meter import (
#     MeterModel,
#     MeterGrammarModel,
#     MeterModelState
# )
#
# from model.base import (
#     MidiModelState,
#     MidiModel
# )

<filename>model/__init__.py
# from model.beat import (
#     TatumTrackingModelState,
#     TatumTrackingGrammarModelState
# )
#
# from model.voice import (
#     VoiceSplittingModelState,
#     VoiceSplittingGrammarModelState
# )
#
# from model.hierarchy import (
#     HierarchyModelState,
#     HierarchyGrammarModelState
# )
#
# from model.meter import (
#     MeterModel,
#     MeterGrammarModel,
#     MeterModelState
# )
#
# from model.base import (
#     MidiModelState,
#     MidiModel
# )

# from model.beat import ( #     TatumTrackingModelState, #     TatumTrackingGrammarModelState # ) # # from model.voice import ( #     VoiceSplittingModelState, #     VoiceSplittingGrammarModelState # ) # # from model.hierarchy import ( #     HierarchyModelState, #     HierarchyGrammarModelState # ) # # from model.meter import ( #     MeterModel, #     MeterGrammarModel, #     MeterModelState # ) # # from model.base import ( #     MidiModelState, #     MidiModel # )