======================== unified (from filesystem) ========================
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                                        'duration'  '272'
                                          'artist'  'Gorillaz'
                                     'text_people'  ''
                                         'release'  'Demon Days'
                                           'title'  'O Green World'
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                                     'discogstags'  ("['leftfield', 'trip hop', 'lo-fi', 'pop rap', 'brit pop', 'downtempo', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '23'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '122.659'
                                             'key'  '7A'
                                        'acoustid'  '0db1c020-12b7-46f1-a01c-4b82be47597b'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TBPM' (BPM (beats per minute))                     '122.659'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'O Green World'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gorillaz'
'TPE2' (Band/orchestra/accompaniment)               'Gorillaz'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/23'
'TSO2'                                              'Gorillaz'
'TSOP' (Performer sort order)                       'Gorillaz'
'TSRC' (ISRC (international standard recording code))  'GBAYE0500171'
'TXXX:Acoustid Id'                                  '0db1c020-12b7-46f1-a01c-4b82be47597b'
'TXXX:Artists'                                      'Gorillaz'
'TXXX:MusicBrainz Album Artist Id'                  'e21857d5-3256-4547-afb3-4b6ded592596'
'TXXX:MusicBrainz Album Id'                         'be144352-0bad-4dd6-b4e7-95e5ef43522a'
'TXXX:MusicBrainz Album Status'                     'bootleg'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'e21857d5-3256-4547-afb3-4b6ded592596'
'TXXX:MusicBrainz Release Group Id'                 'f959a46a-a136-3134-9412-6572b23fad95'
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'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['leftfield',
 'trip hop',
 'lo-fi',
 'pop rap',
 'brit pop',
 'downtempo',
 'electronic',
 'hip hop',
 'rock']
'TXXX:lastfmtags'                                   'indie/alternative/electronic/hip hop/rock'
'TXXX:originalyear'                                 '2005'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.534935'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'18e66faf-9df4-4c8c-9a51-ca4ca4ba21fc')

========================== row from database ==========================
                                              'id'  1350960
                                            'path'  /data/Music/Bulk/00poprockelectronic/Gorillaz/Demon Days (Special Edition)/04 gorillaz - o green world.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  272
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  6599844
                                           'mtime'  1636911270
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (Special Edition) 04 gorillaz green world electronic trip hop downtempo acid jazz
                                      'tag_artist'  Gorillaz
                                     'tag_release'  Demon Days
                                       'tag_title'  O Green World
                                             'bpm'  122.659
                                    'search_title'  'green':2 'o':1 'world':3
                                   'search_artist'  'gorillaz':1
                                  'search_release'  'days':2 'demon':1
                                     'search_rest'  '00poprockelectronic':1 'acid':13 'downtempo':12 'edition':4,5 'electronic':9 'gorillaz':6 'green':7 'hop':11 'jazz':14 'special':2,3 'trip':10 'world':8
                                    'search_combo'  '00poprockelectronic':7 'acid':19 'days':6C 'demon':5C 'downtempo':18 'edition':10,11 'electronic':15 'gorillaz':4B,12 'green':2A,13 'hop':17 'jazz':20 'o':1A 'special':8,9 'trip':16 'world':3A,14
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-drums-4', 'q-busy-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie/alternative/electronic/hip hop/rock']
                                        'tag_date'  2005
                                     'discogstags'  ['leftfield', 'trip hop', 'lo-fi', 'pop rap', 'brit pop', 'downtempo', 'electronic', 'hip hop', 'rock']

============================== file details ==============================
                                           'mtime'  1636911270.3978412  (2021-11-14 18:34:30)
                             'size'  6599844