I use the'mitdb database. I can easily fetch the data thanks to your API which is really great. However, the documentation on the annotation is unclear.
For example, for the record 112, in the annotations, the subtype part contains strings '0', '1' and '2', however according to the documentation of the database, there is no such annotation code. Furthermore, it is not clear where to find the beat types and the rhythm types (annotation.subtype, annotation.aux_note, somethingelse ?)