======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '172'
                                          'artist'  'The Smashing Pumpkins'
                                     'text_people'  ''
                                         'release'  'Mellon Collie and the Infinite Sadness'
                                           'title'  'Mellon Collie and the Infinite Sadness'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', "
 "'Q-PIANO-4', 'q-chart-4', 'q-drums-1', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'grunge', 'rock']"
                                     'discogstags'  "['alternative rock', 'grunge', 'art rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '14'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-gr-grunge'
                                             'bpm'  '147'
                                             'key'  '2A'
                                        'acoustid'  '85dcac76-e0b2-4baf-8cbf-9bd72430418e'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Mellon Collie and the Infinite Sadness'
'TBPM' (BPM (beats per minute))                     '147'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-grunge'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1995-10-24'
'TIT2' (Title/songname/content description)         'Mellon Collie and the Infinite Sadness'
'TKEY' (Initial key)                                '2A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Smashing Pumpkins'
'TPE2' (Band/orchestra/accompaniment)               'The Smashing Pumpkins'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Virgin'
'TRCK' (Track number/Position in set)               '1/14'
'TSO2'                                              'Smashing Pumpkins, The'
'TSOP' (Performer sort order)                       'Smashing Pumpkins, The'
'TSRC' (ISRC (international standard recording code))  'USVI29501006'
'TSST' (Set subtitle)                               'Dawn to Dusk'
'TXXX:ASIN'                                         'B000024JHZ'
'TXXX:Acoustid Id'                                  '85dcac76-e0b2-4baf-8cbf-9bd72430418e'
'TXXX:Artists'                                      'The Smashing Pumpkins'
'TXXX:BARCODE'                                      '724384086428'
'TXXX:CATALOGNUMBER'                                '7243 8 40864 2 8'
'TXXX:MusicBrainz Album Artist Id'                  'ba0d6274-db14-4ef5-b28d-657ebde1a396'
'TXXX:MusicBrainz Album Id'                         '5bc55bab-b2be-4566-8983-00108b1d5d8f'
'TXXX:MusicBrainz Album Release Country'            'AU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'ba0d6274-db14-4ef5-b28d-657ebde1a396'
'TXXX:MusicBrainz Release Group Id'                 '1af599c9-0b44-3a5a-a06b-39e8db6b2b4e'
'TXXX:MusicBrainz Release Track Id'                 'b4edd3f1-0008-4674-a46d-765d4720d7be'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['alternative rock', 'grunge', 'art rock', 'rock']
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
'TXXX:mood'                                         'Electronic/Not party/Not acoustic/Not aggressive/Not sad/Relaxed/Not happy'
'TXXX:originalyear'                                 '1995'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.09 dB'
'TXXX:replaygain_track_peak'                        '0.809343'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd5165d2d-be7c-4555-8bd8-630e2085c090')

========================== row from database ==========================
                                              'id'  1326101
                                            'path'  /data/Music/Bulk/00poprockelectronic/Smashing Pumpkins/Mellon Collie and the Infinite Sadness/Smashing Pumpkins - Mellon Collie and the Infinite Sadness - 01.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  172
                                           'genre'  rock-gr-grunge
                                        'filesize'  2860302
                                           'mtime'  1636903073
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 01 rock gr grunge
                                      'tag_artist'  The Smashing Pumpkins
                                     'tag_release'  Mellon Collie and the Infinite Sadness
                                       'tag_title'  Mellon Collie and the Infinite Sadness
                                             'bpm'  147.0
                                    'search_title'  'and':3 'collie':2 'infinite':5 'mellon':1 'sadness':6 'the':4
                                   'search_artist'  'pumpkins':3 'smashing':2 'the':1
                                  'search_release'  'and':3 'collie':2 'infinite':5 'mellon':1 'sadness':6 'the':4
                                     'search_rest'  '00poprockelectronic':1 'gr':3 'grunge':4 'rock':2
                                    'search_combo'  '00poprockelectronic':16 'and':3A,12C 'collie':2A,11C 'gr':18 'grunge':19 'infinite':5A,14C 'mellon':1A,10C 'pumpkins':9B 'rock':17 'sadness':6A,15C 'smashing':8B 'the':4A,7B,13C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'grunge', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  ['alternative rock', 'grunge', 'art rock', 'rock']

============================== file details ==============================
                                           'mtime'  1636903072.7290545  (2021-11-14 16:17:52)
                             'size'  2860302