======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '198'
                                          'artist'  'Sebadoh'
                                     'text_people'  ''
                                         'release'  'III'
                                           'title'  'The Freed Pig (4-Track Demo)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'lo fi', 'indie rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '18'
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '128.1'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00002E16 00001777 00015CB1 00007BAE 0002AFC1 0002AFC1 00008191 00007EFB '
 '00021353 0002D0D0')
'COMM:iTunPGAP:eng'                                 '1'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000828 00000000008545C8 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '18+14D52A8C4FD17369AE92A0870277F2F2+6956988'
'TALB' (Album/Movie/Show title)                     'III'
'TBPM' (BPM (beats per minute))                     '128.1'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '1991'
'TENC' (Encoded by)                                 'iTunes v6.0.5'
'TIT2' (Title/songname/content description)         'The Freed Pig (4-Track Demo)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sebadoh'
'TPOS' (Part of a set)                              '2/2'
'TRCK' (Track number/Position in set)               '16/18'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'lo fi', 'indie rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.00 dB'
'TXXX:replaygain_track_peak'                        '0.370213'

========================== row from database ==========================
                                              'id'  1254695
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Sebadoh/III/2-16 the freed pig (4-track demo).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  198
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  3309578
                                           'mtime'  1621852185
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 2 16 the freed pig track demo) ifs songwriter indie unsorted
                                      'tag_artist'  Sebadoh
                                     'tag_release'  III
                                       'tag_title'  The Freed Pig (4-Track Demo)
                                             'bpm'  128.1
                                    'search_title'  '4':4 '4track':6 'demo':7,8 'freed':2 'pig':3 'the':1 'track':5
                                   'search_artist'  'sebadoh':1
                                  'search_release'  'iii':1
                                     'search_rest'  '00singer':1 '2':4 'demo':9,10 'eos':3 'freed':6 'ifs':11 'indie':12 'pig':7 'songwriter':2 'the':5 'track':8 'unsorted':13
                                    'search_combo'  '00singer':11 '2':14 '4':4A '4track':6A 'demo':7A,8A,19,20 'eos':13 'freed':2A,16 'ifs':21 'iii':10C 'indie':22 'pig':3A,17 'sebadoh':9B 'songwriter':12 'the':1A,15 'track':5A,18 'unsorted':23
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'lo fi', 'indie rock', 'rock']
                                        'tag_date'  1991
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621852185.4855096  (2021-05-24 12:29:45)
                             'size'  3309578