======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '92'
                                          'artist'  'Dinosaur Train'
                                     'text_people'  ''
                                         'release'  'Dinosaur Train (Volume 1)'
                                           'title'  'Dinosaurs A to Z'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '19'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '110.483'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000721 00000727 00002D36 00002AE8 00003E24 00003E24 00005805 000057D9 '
 '0000F47D 0000F47D')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000079D 00000000003E07D3 00000000 001C15CC 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Dinosaur Train (Volume 1)'
'TBPM' (BPM (beats per minute))                     '110.483'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TDRC' (Recording time)                             '2011'
'TENC' (Encoded by)                                 'iTunes 11.0.2.25'
'TIT2' (Title/songname/content description)         'Dinosaurs A to Z'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dinosaur Train'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/19'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.67 dB'
'TXXX:replaygain_track_peak'                        '0.407809'

========================== row from database ==========================
                                              'id'  769780
                                            'path'  /data/Music/Bulk/0soundtrack/Dinosaur Train (Volume 1)/03 Dinosaurs A to Z.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  92
                                           'genre'  soundtrack-video-series
                                        'filesize'  2055831
                                           'mtime'  1620328828
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 03 soundtrack video series
                                      'tag_artist'  Dinosaur Train
                                     'tag_release'  Dinosaur Train (Volume 1)
                                       'tag_title'  Dinosaurs A to Z
                                             'bpm'  110.483
                                    'search_title'  'a':2 'dinosaurs':1 'to':3 'z':4
                                   'search_artist'  'dinosaur':1 'train':2
                                  'search_release'  '1':5,6 'dinosaur':1 'train':2 'volume':3,4
                                     'search_rest'  '0soundtrack':1 'series':4 'soundtrack':2 'video':3
                                    'search_combo'  '0soundtrack':13 '1':11C,12C 'a':2A 'dinosaur':5B,7C 'dinosaurs':1A 'series':16 'soundtrack':14 'to':3A 'train':6B,8C 'video':15 'volume':9C,10C 'z':4A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-1', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  2011
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620328828.2976282  (2021-05-06 21:20:28)
                             'size'  2055831