Path error in `MaestroDataset`

[matsuobasho]

I'm guessing this is the same problem as #33

Within __getitem__ of the MaestroDataset class, hdf5_name is
workspace\\hdf5s\\maestro\\2018\\MIDI-Unprocessed_Recital17-19_MID--AUDIO_17_R1_2018_wav--4.h5

so hdf5_path becomes this:
'./workspace\\hdf5s\\maestro\\2018\\workspace\\hdf5s\\maestro\\2018\\MIDI-Unprocessed_Recital17-19_MID--AUDIO_17_R1_2018_wav--4.h5'

Thus, when we start loading the batches in main.py, we get a FileNotFoundError because the path is incorrect.

[matsuobasho]

Any update on this? It's precluding me from using the library.