https://groups.google.com/a/tensorflow.org/g/magenta-discuss/c/vqIokio3QbU/m/eub9QzMaBQAJ

https://groups.google.com/a/tensorflow.org/g/magenta-discuss/c/vqIokio3QbU/m/eub9QzMaBQAJ

https://groups.google.com/a/tensorflow.org/g/magenta-discuss/c/vqIokio3QbU/m/eub9QzMaBQAJ