Add MUSDB18 corpus

[JoshuaStorm]

See:
https://sigsep.github.io/datasets/musdb.html

Seems like a very valuable dataset that is worth adding if someone has the time!

[ynop]

Thanks for the hint!

It is already on the list of datasets (#44). Currently I am busy with other stuff. But if you want to give it a try, see https://audiomate.readthedocs.io/en/latest/documentation/new_dataset_format.html. Any contributions are welcomed.

[JoshuaStorm]

Ah, my bad! Looking a little into it, it might be difficult since they have to vet individuals requesting the data set

[faroit]

Great Project!

Concerning musdb, we now have a 30s and a 7s preview version of the dataset under creative commons (currently only as WAV files https://zenodo.org/record/1256003 at https://zenodo.org/record/1256064). As soon as I have uploaded the compressed dataset I can make a PR.