======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '234'
                                          'artist'  'Less Than Jake'
                                     'text_people'  ''
                                         'release'  'Bootleg a Bootleg, You Cut Out the Middleman'
                                           'title'  'Happyman / 9th at Pine'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-4', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['ska punk', 'punk rock', 'ska', 'punk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '13'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk-ska'
                                             'bpm'  '141.019'
                                             'key'  '6A'
                                        'acoustid'  '6ff6aa25-a4d7-49e9-a16f-e7a2e8fba7dd'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Bootleg a Bootleg, You Cut Out the Middleman'
'TBPM' (BPM (beats per minute))                     '141.019'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk-ska'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Happyman / 9th at Pine'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Less Than Jake'
'TPE2' (Band/orchestra/accompaniment)               'Less Than Jake'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  '[no label]'
'TRCK' (Track number/Position in set)               '3/13'
'TSO2'                                              'Less Than Jake'
'TSOP' (Performer sort order)                       'Less Than Jake'
'TXXX:Acoustid Id'                                  '6ff6aa25-a4d7-49e9-a16f-e7a2e8fba7dd'
'TXXX:Artists'                                      'Less Than Jake'
'TXXX:Mp3gain_minmax'                               '124,183'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'TXXX:MusicBrainz Album Artist Id'                  'e54e065f-0ce6-4779-9a9a-afd7b997471f'
'TXXX:MusicBrainz Album Id'                         '79a13728-21b4-480a-91e4-3e714c74f47d'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/live'
'TXXX:MusicBrainz Artist Id'                        'e54e065f-0ce6-4779-9a9a-afd7b997471f'
'TXXX:MusicBrainz Release Group Id'                 '6383b0ad-1749-3b81-afba-b60993c2d40f'
'TXXX:MusicBrainz Release Track Id'                 '27937e06-d24d-3d4c-abd6-b2b6e3158b80'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['ska punk', 'punk rock', 'ska', 'punk', 'rock']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.22 dB'
'TXXX:replaygain_track_peak'                        '0.607295'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'87fedbd9-7009-4a2e-a72a-29a6f22c9364')

========================== row from database ==========================
                                              'id'  1319161
                                            'path'  /data/Music/Bulk/00poprockelectronic/Less Than Jake/Less Than Jake - Bootleg A Bootleg You Cut Out The Middleman/03-Less_Than_Jake-Happyman__9th_At_Pine.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  234
                                           'genre'  rock-gr-punk-ska
                                        'filesize'  5672617
                                           'mtime'  1621637849
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic A The 03 Less_Than_Jake Happyman__9th_At_Pine rock gr punk ska
                                      'tag_artist'  Less Than Jake
                                     'tag_release'  Bootleg a Bootleg, You Cut Out the Middleman
                                       'tag_title'  Happyman / 9th at Pine
                                             'bpm'  141.019
                                    'search_title'  '9th':2 'at':3 'happyman':1 'pine':4
                                   'search_artist'  'jake':3 'less':1 'than':2
                                  'search_release'  'a':2 'bootleg':1,3 'cut':5 'middleman':8 'out':6 'the':7 'you':4
                                     'search_rest'  '00poprockelectronic':1 '9th':8 'a':2 'at':9 'gr':12 'happyman':7 'jake':6 'less':4 'pine':10 'punk':13 'rock':11 'ska':14 'than':5 'the':3
                                    'search_combo'  '00poprockelectronic':16 '9th':2A,23 'a':9C,17 'at':3A,24 'bootleg':8C,10C 'cut':12C 'gr':27 'happyman':1A,22 'jake':7B,21 'less':5B,19 'middleman':15C 'out':13C 'pine':4A,25 'punk':28 'rock':26 'ska':29 'than':6B,20 'the':14C,18 'you':11C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['ska punk', 'punk rock', 'ska', 'punk', 'rock']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621637848.591099  (2021-05-22 00:57:28)
                             'size'  5672617