Add Dockerfile

Dockerfile

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+FROM continuumio/miniconda:latest
+
+WORKDIR /root
+ENV MODEL_DIR=/root/maestro
+
+# packages needed
+RUN apt-get update && \
+    apt-get install -y unzip curl wget vim libsndfile-dev build-essential libasound2-dev libjack-dev portaudio19-dev
+
+# checkpoint
+RUN wget https://storage.googleapis.com/magentadata/models/onsets_frames_transcription/maestro_checkpoint.zip && \
+    unzip maestro_checkpoint.zip && \
+    mv train maestro
+
+# installation
+RUN curl https://raw.githubusercontent.com/tensorflow/magenta/master/magenta/tools/magenta-install.sh > /tmp/magenta-install.sh && \
+    sed 's/sudo //' -i /tmp/magenta-install.sh && \
+    bash --login /tmp/magenta-install.sh
+
+RUN echo "conda activate magenta" >> /root/.bashrc