Update requirements.txt

requirements.txt

@@ -1,17 +1,19 @@
-absl-py
-flax @ git+https://github.com/google/flax#egg=flax
-gin-config
-immutabledict
-librosa
-mir_eval
-note_seq
-numpy
-pretty_midi
-scikit-learn
-scipy
-seqio @ git+https://github.com/google/seqio#egg=seqio
-t5
-t5x @ git+https://github.com/google-research/t5x#egg=t5x
+nest-asyncio
+pyfluidsynth
+absl-py 
+ddsp 
+flax 
+gin-config 
+immutabledict 
+librosa 
+mir_eval 
+note_seq 
+numpy 
+pretty_midi 
+scikit-learn 
+scipy 
+seqio 
+t5 
 tensorflow_cpu
 tensorflow-datasets