======================== unified (from filesystem) ========================
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                                        'duration'  '201'
                                          'artist'  'Kings of Leon'
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                                      'lastfmtags'  "['indie', 'alternative', 'southern rock', 'indie rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
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                                     'tracknumber'  '4'
                                      'tracktotal'  '11'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '112'
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rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Youth & Young Manhood'
'TBPM' (BPM (beats per minute))                     '112'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDOR' (Original release time)                      '2003'
'TDRC' (Recording time)                             '2003-08-19'
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'TIT2' (Title/songname/content description)         "Joe's Head"
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Kings of Leon'
'TPE2' (Band/orchestra/accompaniment)               'Kings of Leon'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'RCA'
'TRCK' (Track number/Position in set)               '4/11'
'TSO2'                                              'Kings of Leon'
'TSOP' (Performer sort order)                       'Kings of Leon'
'TSRC' (ISRC (international standard recording code))  'USRC10300878'
'TXXX:ASIN'                                         'B00009YFP8'
'TXXX:Acoustid Id'                                  '67d2aece-61fc-4858-8c2f-23537de04a3a'
'TXXX:Artists'                                      'Kings of Leon'
'TXXX:BARCODE'                                      '828765239424'
'TXXX:CATALOGNUMBER'                                '82876 52394-2'
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'TXXX:MusicBrainz Album Id'                         '86670418-5e3a-4fd3-b03e-a3575a77285e'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '6ffb8ea9-2370-44d8-b678-e9237bbd347b'
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'TXXX:Q-HAP'                                        '3'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'southern rock', 'indie rock', 'rock']
'TXXX:originalyear'                                 '2003'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'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'                        '-0.60 dB'
'TXXX:replaygain_track_peak'                        '0.400830'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd5cb0c3f-378a-4d8b-bf6e-d90c1ae6c8e5')

========================== row from database ==========================
                                              'id'  1502707
                                            'path'  /data/Music/Bulk/00poprockelectronic/Kings of Leon/Kings Of Leon/Youth & Young Manhood/Kings Of Leon - Youth & Young Manhood - 04 - Joe_s Head.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  201
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  4866517
                                           'mtime'  1621697441
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Of Of 04 Joe_s ifs songwriter indie rock
                                      'tag_artist'  Kings of Leon
                                     'tag_release'  Youth & Young Manhood
                                       'tag_title'  Joe's Head
                                             'bpm'  112.0
                                    'search_title'  'head':4 'joe':1 'joes':3 's':2
                                   'search_artist'  'kings':1 'leon':3 'of':2
                                  'search_release'  'manhood':3 'young':2 'youth':1
                                     'search_rest'  '00poprockelectronic':1 'ifs':5 'indie':7 'joe':3 'of':2 'rock':8 's':4 'songwriter':6
                                    'search_combo'  '00poprockelectronic':11 'head':4A 'ifs':15 'indie':17 'joe':1A,13 'joes':3A 'kings':5B 'leon':7B 'manhood':10C 'of':6B,12 'rock':18 's':2A,14 'songwriter':16 'young':9C 'youth':8C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'southern rock', 'indie rock', 'rock']
                                        'tag_date'  2003
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621697441.4855886  (2021-05-22 17:30:41)
                             'size'  4866517