======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '90'
                                          'artist'  'Dinosaur Train'
                                     'text_people'  ''
                                         'release'  'Dinosaur Train (Volume 1)'
                                           'title'  'Hungry, Hungry Herbivore'
                                           '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-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '19'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '105.094'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000257 00000236 00000E6F 00000EB7 00009B00 00009B00 000048AF 0000498E '
 '00006C29 00002DD0')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000AD8 00000000003CC518 00000000 001B84E6 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Dinosaur Train (Volume 1)'
'TBPM' (BPM (beats per minute))                     '105.094'
'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)         'Hungry, Hungry Herbivore'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dinosaur Train'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '6/19'
'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'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.24 dB'
'TXXX:replaygain_track_peak'                        '0.478333'

========================== row from database ==========================
                                              'id'  770787
                                            'path'  /data/Music/Bulk/0soundtrack/Dinosaur Train (Volume 1)/06 Hungry, Hungry Herbivore.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  90
                                           'genre'  soundtrack-video-series
                                        'filesize'  2018959
                                           'mtime'  1620328834
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 06 soundtrack video series
                                      'tag_artist'  Dinosaur Train
                                     'tag_release'  Dinosaur Train (Volume 1)
                                       'tag_title'  Hungry, Hungry Herbivore
                                             'bpm'  105.094
                                    'search_title'  'herbivore':3 'hungry':1,2
                                   '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':12 '1':10C,11C 'dinosaur':4B,6C 'herbivore':3A 'hungry':1A,2A 'series':15 'soundtrack':13 'train':5B,7C 'video':14 'volume':8C,9C
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  9B
                                           '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-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  2011
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620328834.2721138  (2021-05-06 21:20:34)
                             'size'  2018959