======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '340'
                                          'artist'  'Laura Marling'
                                     'text_people'  ''
                                         'release'  'Once I Was An Eagle'
                                           'title'  'Litttle Bird'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', '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'  '15'
                                      'tracktotal'  '16'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '130.146'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000240 0000036B 00001BC3 000029C1 0003AB14 00043ED6 000082C7 00007F66 '
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000750 0000000000E50AA0 00000000 00CFA72F 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))                     '130.146'
'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)         'Litttle Bird'
'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)               '15/16'
'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'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.16 dB'
'TXXX:replaygain_track_peak'                        '0.723161'

========================== row from database ==========================
                                              'id'  1379739
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Laura Marling - 2013 - Marling, Laura - Once I was an eagle/15 Litttle Bird.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  340
                                           'genre'  ifs-songwriter
                                        'filesize'  13811506
                                           'mtime'  1636136231
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 2013 Marling, was an eagle 15 ifs songwriter
                                      'tag_artist'  Laura Marling
                                     'tag_release'  Once I Was An Eagle
                                       'tag_title'  Litttle Bird
                                             'bpm'  130.146
                                    'search_title'  'bird':2 'litttle':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 'an':8 'eagle':9 'eos':3 'ifs':10 'marling':5,6 'songwriter':2 'was':7
                                    'search_combo'  '00singer':10 '2013':13 'an':8C,17 'bird':2A 'eagle':9C,18 'eos':12 'i':6C 'ifs':19 'laura':3B 'litttle':1A 'marling':4B,14,15 'once':5C 'songwriter':11 'was':7C,16
                                    'tag_tracknum'  15
                                      '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-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-2', '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'  1636136231.3246794  (2021-11-05 19:17:11)
                             'size'  13811506