======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '141'
                                          'artist'  'The Mountain Goats'
                                     'text_people'  ''
                                         'release'  'Zopilote Machine'
                                           'title'  'Quetzalcoatl Is Born'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']"
                                     'discogstags'  "['rock', 'alternative rock', 'lo-fi', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  '19'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '90.5'
                                             'key'  '1A'
                                        'acoustid'  'bf0b144f-a5e3-4990-a3aa-fdde459ea7a8'
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Zopilote Machine'
'TBPM' (BPM (beats per minute))                     '90.5'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDOR' (Original release time)                      '1994'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Quetzalcoatl Is Born'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mountain Goats'
'TPE2' (Band/orchestra/accompaniment)               'The Mountain Goats'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Ajax'
'TRCK' (Track number/Position in set)               '19/19'
'TSO2'                                              'Mountain Goats, The'
'TSOP' (Performer sort order)                       'Mountain Goats, The'
'TXXX:ASIN'                                         'B000005NGJ'
'TXXX:Acoustid Id'                                  'bf0b144f-a5e3-4990-a3aa-fdde459ea7a8'
'TXXX:Artists'                                      'The Mountain Goats'
'TXXX:BARCODE'                                      '791071003624'
'TXXX:CATALOGNUMBER'                                'AJAX 036'
'TXXX:MusicBrainz Album Artist Id'                  '9639cd52-c351-4a17-9797-58880e95a7ef'
'TXXX:MusicBrainz Album Id'                         '07133990-91fd-4352-bf3c-0ed20b3dfcca'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '9639cd52-c351-4a17-9797-58880e95a7ef'
'TXXX:MusicBrainz Release Group Id'                 '5c14ea86-2b65-38fa-8e6e-742b36d0319f'
'TXXX:MusicBrainz Release Track Id'                 '16751b1f-1b16-3629-8394-83937321fad5'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'lo-fi', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
'TXXX:originalyear'                                 '1994'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.44 dB'
'TXXX:replaygain_track_peak'                        '0.441783'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9e92dbfe-48bc-415e-b872-135de04f0cbb')

========================== row from database ==========================
                                              'id'  1355407
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Mountain Goats/Zopilote Machine/19_quetzalcoatl_is_born.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  141
                                           'genre'  ifs-songwriter
                                        'filesize'  2309401
                                           'mtime'  1628357243
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 19_quetzalcoatl_is_born ifs songwriter
                                      'tag_artist'  The Mountain Goats
                                     'tag_release'  Zopilote Machine
                                       'tag_title'  Quetzalcoatl Is Born
                                             'bpm'  90.5
                                    'search_title'  'born':3 'is':2 'quetzalcoatl':1
                                   'search_artist'  'goats':3 'mountain':2 'the':1
                                  'search_release'  'machine':2 'zopilote':1
                                     'search_rest'  '00poprockelectronic':1 '19':2 'born':5 'ifs':6 'is':4 'quetzalcoatl':3 'songwriter':7
                                    'search_combo'  '00poprockelectronic':9 '19':10 'born':3A,13 'goats':6B 'ifs':14 'is':2A,12 'machine':8C 'mountain':5B 'quetzalcoatl':1A,11 'songwriter':15 'the':4B 'zopilote':7C
                                    'tag_tracknum'  19
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
                                        'tag_date'  1994
                                     'discogstags'  ['rock', 'alternative rock', 'lo-fi', 'indie rock']

============================== file details ==============================
                                           'mtime'  1628357243.1449003  (2021-08-07 19:27:23)
                             'size'  2309401