diff --git a/src/diffusers/pipelines/__init__.py b/src/diffusers/pipelines/__init__.py
index f73eb8383f..d9bbdeeb38 100644
--- a/src/diffusers/pipelines/__init__.py
+++ b/src/diffusers/pipelines/__init__.py
@@ -137,3 +137,4 @@ except OptionalDependencyNotAvailable:
     from ..utils.dummy_transformers_and_torch_and_note_seq_objects import *  # noqa F403
 else:
     from .spectrogram_diffusion import SpectrogramDiffusionPipeline
+    from .spectrogram_diffusion import MidiProcessor