======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '220'
                                          'artist'  'Laura Marling'
                                     'text_people'  ''
                                         'release'  'Once I Was An Eagle'
                                           'title'  'Where Can I Go?'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
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 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['acoustic', 'folk rock', 'folk', 'rock', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '16'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '126.726'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'COMM:iTunNORM:eng'                                 (' 00000255 0000039C 000019F0 00002070 0002E0A1 000310B1 00008749 00008292 '
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000072C 00000000009488C4 00000000 0086A14F 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '16++'
'TALB' (Album/Movie/Show title)                     'Once I Was An Eagle'
'TBPM' (BPM (beats per minute))                     '126.726'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2013'
'TENC' (Encoded by)                                 'iTunes 11.0.3.42'
'TIT2' (Title/songname/content description)         'Where Can I Go?'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Laura Marling'
'TPE2' (Band/orchestra/accompaniment)               'Laura Marling'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '10/16'
'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:discogstags'                                  ['acoustic', 'folk rock', 'folk', 'rock', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.49 dB'
'TXXX:replaygain_track_peak'                        '0.744271'

========================== row from database ==========================
                                              'id'  1376479
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Laura Marling - 2013 - Marling, Laura - Once I was an eagle/10 Where Can I Go_.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  220
                                           'genre'  ifs-songwriter
                                        'filesize'  9025330
                                           'mtime'  1636136226
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 2013 Marling, was eagle 10 Go_ ifs songwriter
                                      'tag_artist'  Laura Marling
                                     'tag_release'  Once I Was An Eagle
                                       'tag_title'  Where Can I Go?
                                             'bpm'  126.726
                                    'search_title'  'can':2 'go':4 'i':3 'where':1
                                   'search_artist'  'laura':1 'marling':2
                                  'search_release'  'an':4 'eagle':5 'i':2 'once':1 'was':3
                                     'search_rest'  '00singer':1 '2013':4 'eagle':8 'eos':3 'go':9 'ifs':10 'marling':5,6 'songwriter':2 'was':7
                                    'search_combo'  '00singer':12 '2013':15 'an':10C 'can':2A 'eagle':11C,19 'eos':14 'go':4A,20 'i':3A,8C 'ifs':21 'laura':5B 'marling':6B,16,17 'once':7C 'songwriter':13 'was':9C,18 'where':1A
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  2013
                                     'discogstags'  ['acoustic', 'folk rock', 'folk', 'rock', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1636136225.906414  (2021-11-05 19:17:05)
                             'size'  9025330