======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '282'
                                          'artist'  'Iggy Pop'
                                     'text_people'  ''
                                         'release'  'Nude & Rude: The Best Of Iggy Pop'
                                           'title'  'The Passenger'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['proto punk', 'punk rock', 'classic rock', 'punk', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'new wave', 'punk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '17'
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '134.914'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'Cleaned by TuneUp!'
'COMM:ID3v1 Comment:XXX'                            'Cleaned by TuneUp!'
'COMM:iTunNORM:eng'                                 (' 00000A0E 00000B58 000034B0 000044AB 0002977D 0003EAA1 00007803 00008000 '
 '0001597C 00028471')
'PRIV:AverageLevel:\x06\x14\x00\x00'                PRIV(owner='AverageLevel', data=b'\x06\x14\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'TALB' (Album/Movie/Show title)                     'Nude & Rude: The Best Of Iggy Pop'
'TBPM' (BPM (beats per minute))                     '134.914'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'The Passenger'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Iggy Pop'
'TPE2' (Band/orchestra/accompaniment)               'Iggy Pop'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '10/17'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'new wave', 'punk']
'TXXX:lastfmtags'                                   ['proto punk', 'punk rock', 'classic rock', 'punk', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+0.52 dB'
'TXXX:replaygain_track_peak'                        '0.534946'

========================== row from database ==========================
                                              'id'  1348427
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/iggy pop - the passenger(2)278423.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  282
                                           'genre'  rock-cppex
                                        'filesize'  4533894
                                           'mtime'  1620737438
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] iggy pop the passenger(2)278423 rock cppex
                                      'tag_artist'  Iggy Pop
                                     'tag_release'  Nude & Rude: The Best Of Iggy Pop
                                       'tag_title'  The Passenger
                                             'bpm'  134.914
                                    'search_title'  'passenger':2 'the':1
                                   'search_artist'  'iggy':1 'pop':2
                                  'search_release'  'best':5 'iggy':7 'nude':1 'of':6 'pop':8 'rude':2,3 'the':4
                                     'search_rest'  '00poprockelectronic':1 '2':11 '278423':12 'cppex':15 'files':5,6 'iggy':7 'loose':3,4 'passenger':10 'passenger2278423':13 'pop':8 'rock':14 'the':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':13 '2':23 '278423':24 'best':9C 'cppex':27 'files':17,18 'iggy':3B,11C,19 'loose':15,16 'nude':5C 'of':10C 'passenger':2A,22 'passenger2278423':25 'pop':4B,12C,20 'rock':26 'rude':6C,7C 'the':1A,8C,21 'unsorted':14
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['proto punk', 'punk rock', 'classic rock', 'punk', 'rock']
                                        'tag_date'  1977
                                     'discogstags'  ['rock', 'alternative rock', 'new wave', 'punk']

============================== file details ==============================
                                           'mtime'  1620737438.0937254  (2021-05-11 14:50:38)
                             'size'  4533894