======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '199'
                                          'artist'  'Skid Row'
                                     'text_people'  ''
                                         'release'  'Youth Gone Wild'
                                           'title'  'Youth Gone Wild'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'hair metal', 'hard rock', 'rock', 'heavy metal']"
                                     'discogstags'  "['rock', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '4'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-unsorted;eid-metal'
                                             'bpm'  '117.671'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'American; New Jersey'
'COMM:Songs-DB_Custom1:eng'                         '1980s'
'COMM:Songs-DB_Custom2:eng'                         'Nostalgia; Old School; Male Vocalists; Legends'
'COMM:Songs-DB_Custom3:eng'                         'American; New Jersey'
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Youth Gone Wild'
'TBPM' (BPM (beats per minute))                     '117.671'
'TCON' (Content type, a.k.a. Genre)                 ['rock-unsorted', 'eid-metal']
'TDOR' (Original release time)                      '1989'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Youth Gone Wild'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Skid Row'
'TPE2' (Band/orchestra/accompaniment)               'Skid Row'
'TRCK' (Track number/Position in set)               '1/4'
'TSOP' (Performer sort order)                       'Skid Row'
'TXXX:ALBUMARTISTSORT'                              'Skid Row'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MusicBrainz Album Artist Id'                  '6da0515e-a27d-449d-84cc-00713c38a140'
'TXXX:MusicBrainz Album Id'                         '4c9aff0b-643b-4cc7-9938-0ebccf828d0a'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        '6da0515e-a27d-449d-84cc-00713c38a140'
'TXXX:MusicMagic Data'                              'AgEAAeLrxVSQcKhDgl8J+F//gAGB24503oCguWFn3bsfE4ABheTyzrZ/sPbU87YggLOAAU47gK4hAQAOsQ3dHPWq2K+8ggVOgAKAAbgUl5OktoHLAjwqHYGlgnKLbdWfoZtVs7RwIwaWSY213veyR9BewTGqGYGOg148GIQMKD3ZBMx80SDnguAfs5P3IYPCgOc='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'heavy metal']
'TXXX:lastfmtags'                                   ['80s', 'hair metal', 'hard rock', 'rock', 'heavy metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.40 dB'
'TXXX:replaygain_track_peak'                        '0.377536'

========================== row from database ==========================
                                              'id'  1303788
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Skid Row__cifs1462.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  199
                                           'genre'  rock-unsorted;eid-metal
                                        'filesize'  4782463
                                           'mtime'  1620301844
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Row__cifs1462 rock unsorted;eid metal
                                      'tag_artist'  Skid Row
                                     'tag_release'  Youth Gone Wild
                                       'tag_title'  Youth Gone Wild
                                             'bpm'  117.671
                                    'search_title'  'gone':2 'wild':3 'youth':1
                                   'search_artist'  'row':2 'skid':1
                                  'search_release'  'gone':2 'wild':3 'youth':1
                                     'search_rest'  '00poprockelectronic':1 'cifs1462':8 'eid':11,13 'files':5,6 'loose':3,4 'metal':14 'rock':9 'row':7 'unsorted':2,10,12
                                    'search_combo'  '00poprockelectronic':9 'cifs1462':16 'eid':19,21 'files':13,14 'gone':2A,7C 'loose':11,12 'metal':22 'rock':17 'row':5B,15 'skid':4B 'unsorted':10,18,20 'wild':3A,8C 'youth':1A,6C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'hair metal', 'hard rock', 'rock', 'heavy metal']
                                        'tag_date'  1989
                                     'discogstags'  ['rock', 'heavy metal']

============================== file details ==============================
                                           'mtime'  1620301843.8978298  (2021-05-06 13:50:43)
                             'size'  4782463