region:us
    MUSDB18 music source separation dataset

    to open original stem file (mp4), which is done internally you need stempeg library.
    Outcome of mp4 file is a 3 dimensional np_array [n_stems, n_samples, sample_rate].
    
    firt dimension meanings: {
        0: mixture.
        1: drugs,
        2: bass,
        3: others,
        4:vocals,
    }

    Original dataset is not cutted in any parts, but here I cut each song in 10 seconds chunks with 1 sec overlap.
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