======================== unified (from filesystem) ========================
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                                        'duration'  '219'
                                          'artist'  'Leonard Cohen'
                                     'text_people'  ''
                                         'release'  'Songs From a Room'
                                           'title'  'Seems So Long Ago, Nancy'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
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 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
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                                      'lastfmtags'  "['blues', 'canadian', 'rock', 'folk', 'singer songwriter']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '12'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '136'
                                             'key'  '4A'
                                        'acoustid'  'a4b7716a-a089-475a-b84f-102f4f25ae76'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Songs From a Room'
'TBPM' (BPM (beats per minute))                     '136'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDOR' (Original release time)                      '1969'
'TDRC' (Recording time)                             '2007-04-24'
'TIT2' (Title/songname/content description)         'Seems So Long Ago, Nancy'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Leonard Cohen'
'TPE2' (Band/orchestra/accompaniment)               'Leonard Cohen'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Columbia/Legacy'
'TRCK' (Track number/Position in set)               '5/12'
'TSO2'                                              'Cohen, Leonard'
'TSOP' (Performer sort order)                       'Cohen, Leonard'
'TSRC' (ISRC (international standard recording code))  'USSM19917385'
'TXXX:ASIN'                                         'B000NOKA1C'
'TXXX:Acoustid Id'                                  'a4b7716a-a089-475a-b84f-102f4f25ae76'
'TXXX:Artists'                                      'Leonard Cohen'
'TXXX:BARCODE'                                      '886970474023'
'TXXX:CATALOGNUMBER'                                '88697 04740 2'
'TXXX:MusicBrainz Album Artist Id'                  '65314b12-0e08-43fa-ba33-baaa7b874c15'
'TXXX:MusicBrainz Album Id'                         'c8bb1370-eb39-447b-8b32-6b5fdd023700'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '65314b12-0e08-43fa-ba33-baaa7b874c15'
'TXXX:MusicBrainz Release Group Id'                 '0c0d5696-5d29-3809-8b79-4bf1320f0353'
'TXXX:MusicBrainz Release Track Id'                 '2f08cf30-6b1e-3ff1-8738-da8ae497424b'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['blues', 'canadian', 'rock', 'folk', 'singer songwriter']
'TXXX:originalyear'                                 '1969'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.06 dB'
'TXXX:replaygain_track_peak'                        '0.676240'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'7eff29b8-0773-4159-bae8-4d6bdf0a3dc1')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Leonard Cohen/Songs From A Room/MBZ;#Leonard Cohen;#Songs From A Room;#05;#Seems So Long Ago, Nancy.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  219
                                           'genre'  ifs-songwriter
                                        'filesize'  4421299
                                           'mtime'  1622658721
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos MBZ;#Leonard Cohen;#Songs Room;#05;#Seems ifs songwriter
                                      'tag_artist'  Leonard Cohen
                                     'tag_release'  Songs From a Room
                                       'tag_title'  Seems So Long Ago, Nancy
                                             'bpm'  136.0
                                    'search_title'  'ago':4,5 'long':3 'nancy':6 'seems':1 'so':2
                                   'search_artist'  'cohen':2 'leonard':1
                                  'search_release'  'a':3 'from':2 'room':4 'songs':1
                                     'search_rest'  '00singer':1 '05':13,16 'cohen':8,10 'eos':3 'ifs':18 'leonard':5,7 'mbz':4,6 'room':12,15 'seems':14,17 'songs':9,11 'songwriter':2
                                    'search_combo'  '00singer':13 '05':25,28 'a':11C 'ago':4A,5A 'cohen':8B,20,22 'eos':15 'from':10C 'ifs':30 'leonard':7B,17,19 'long':3A 'mbz':16,18 'nancy':6A 'room':12C,24,27 'seems':1A,26,29 'so':2A 'songs':9C,21,23 'songwriter':14
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', '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-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'canadian', 'rock', 'folk', 'singer songwriter']
                                        'tag_date'  2007
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1622658720.501937  (2021-06-02 20:32:00)
                             'size'  4421299