Is it possible to convert this annotation format to a music score?

[dniku]

I am looking at DeepScores-V2 in particular. I have loaded the data in Colab using:

!pip install omrdatasettools

import omrdatasettools

downloader = omrdatasettools.Downloader()
downloader.download_and_extract_dataset(omrdatasettools.OmrDataset.DeepScores_V2_Dense, 'data')

!apt install swig
!git clone https://github.com/yvan674/obb_anns
!mv obb_anns obb_anns_git
!cd obb_anns_git && python3 setup.py develop

import sys

if sys.path[-1] != 'obb_anns_git':
  sys.path.append('obb_anns_git')

import obb_anns

o = obb_anns.OBBAnns('data/ds2_dense/deepscores_test.json')

o.load_annotations()

imgs, anns = o.get_img_ann_pair(idxs=list(range(1)))

and now I can inspect the annotations using

anns[0]

but those are meant for instance segmentation. Is there a way to convert these annotations to MusicXML or some other machine-readable sheet music format, e.g. ABC notation or LilyPond, or extract the sheet music from the DeepScores-V2 dataset in some other way?