Temporal errors in biab partition annotations

[andreamust]

The biab partition contains errors in the temporal encoding of its annotations. For example, in the file biab_internet_corpus_1000.jams, the following events show overlapping or inconsistent timing:

{
  "namespace": "chord_harte",
  "data": [
    { "time": 1.1, "duration": 4.0, "value": "C:maj", "confidence": 1.0 },
    { "time": 2.1, "duration": 4.0, "value": "G:(3,5,b7)", "confidence": 1.0 },
    { "time": 3.1, "duration": 2.0, "value": "C:maj", "confidence": 1.0 },
    { "time": 3.3, "duration": 2.0, "value": "A:(3,5,b7)", "confidence": 1.0 },
    { "time": 4.1, "duration": 1.0, "value": "D:min", "confidence": 1.0 },
    { "time": 4.2, "duration": 1.0, "value": "G:(3,5,b7)", "confidence": 1.0 },
    { "time": 4.3, "duration": 1.0, "value": "C:maj", "confidence": 1.0 },
    { "time": 5.0, "duration": 1.0, "value": "D:(3,5,b7)", "confidence": 1.0 },
    { "time": 5.1, "duration": 2.0, "value": "G:maj", "confidence": 1.0 },
    { "time": 5.3, "duration": 2.0, "value": "C:maj", "confidence": 1.0 },
    { "time": 6.1, "duration": 4.0, "value": "G:(3,5,b7)", "confidence": 1.0 }
  ]
}

Several chord events overlap or their durations extend beyond the start time of the next event, which is not consistent with expected temporal annotation practices.