======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '413'
                                          'artist'  'Jethro Tull'
                                     'text_people'  ''
                                         'release'  'Minstrel In The Gallery'
                                           'title'  'Black Satin Dancer'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']"
                                     'discogstags'  "['rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic;rock-cppex-progressive'
                                             'bpm'  '101.107'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000C5A 000018BE 0000EE41'
'COMM:iTunNORM:eng'                                 (' 00000C5A 000018BE 0000EE41 00012C20 0005FA9C 0004A4A9 00008000 00008000 '
 '00012D39 0000A471')
'TALB' (Album/Movie/Show title)                     'Minstrel In The Gallery'
'TBPM' (BPM (beats per minute))                     '101.107'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-classic', 'rock-cppex-progressive']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Black Satin Dancer'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jethro Tull'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'classic rock']
'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+9.59 dB'
'TXXX:replaygain_track_peak'                        '0.212499'

========================== row from database ==========================
                                              'id'  1325721
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/03 - black satin dancer.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  413
                                           'genre'  rock-cppex-classic;rock-cppex-progressive
                                        'filesize'  13223767
                                           'mtime'  1636039342
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 03 black satin dancer rock cppex classic;rock cppex progressive
                                      'tag_artist'  Jethro Tull
                                     'tag_release'  Minstrel In The Gallery
                                       'tag_title'  Black Satin Dancer
                                             'bpm'  101.107
                                    'search_title'  'black':1 'dancer':3 'satin':2
                                   'search_artist'  'jethro':1 'tull':2
                                  'search_release'  'gallery':4 'in':2 'minstrel':1 'the':3
                                     'search_rest'  '00poprockelectronic':1 'black':7 'classic':12,14 'cppex':11 'dancer':9 'files':5,6 'loose':3,4 'progressive':16 'rock':10,13,15 'satin':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 'black':1A,16 'classic':21,23 'cppex':20 'dancer':3A,18 'files':14,15 'gallery':9C 'in':7C 'jethro':4B 'loose':12,13 'minstrel':6C 'progressive':25 'rock':19,22,24 'satin':2A,17 'the':8C 'tull':5B 'unsorted':11
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
                                        'tag_date'  1975
                                     'discogstags'  ['rock', 'classic rock']

============================== file details ==============================
                                           'mtime'  1636039341.9187047  (2021-11-04 16:22:21)
                             'size'  13223767