======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '346'
                                          'artist'  'Laid Back'
                                     'text_people'  ''
                                         'release'  'Disco Not Disco 2'
                                           'title'  'White Horse'
                                           'quals'  ("['Q-HAP-4', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'reggae', 'electronic', 'pop', 'danish']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '11'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo;set-pl-sced'
                                             'bpm'  '123.935'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000003FF 00000457 0000793B 0000D23B 00053A29 00038AF0 00008057 00007D39 '
 '0003B0B1 0002C19C')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A38 0000000000E8CAB8 00000000 00D310A7 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            'A30E3D0B+273590+11+150+30586+66100+80636+93392+112273+138801+171629+197575+223960+252889'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '8'
'TALB' (Album/Movie/Show title)                     'Disco Not Disco 2'
'TBPM' (BPM (beats per minute))                     '123.935'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-we-disco or italo', 'set-pl-sced']
'TDRC' (Recording time)                             '2002'
'TENC' (Encoded by)                                 'iTunes v7.0.2'
'TIT2' (Title/songname/content description)         'White Horse'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Laid Back'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '8/11'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'reggae', 'electronic', 'pop', 'danish']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.22 dB'
'TXXX:replaygain_track_peak'                        '0.507814'

========================== row from database ==========================
                                              'id'  1419520
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Disco Not Disco 2/08 White Horse.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  346
                                           'genre'  electronic-we-disco or italo;set-pl-sced
                                        'filesize'  13865417
                                           'mtime'  1620532994
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 08 electronic we disco italo;set pl sced
                                      'tag_artist'  Laid Back
                                     'tag_release'  Disco Not Disco 2
                                       'tag_title'  White Horse
                                             'bpm'  123.935
                                    'search_title'  'horse':2 'white':1
                                   'search_artist'  'back':2 'laid':1
                                  'search_release'  '2':3 'disco':1 'not':2
                                     'search_rest'  '00poprockelectronic':1 'dance':3 'disco':7 'electronic':5 'generic':2 'italo':8,10 'pl':12 'sced':13 'set':9,11 'trapbeat':4 'we':6
                                    'search_combo'  '00poprockelectronic':8 '2':7C 'back':4B 'dance':10 'disco':5C,14 'electronic':12 'generic':9 'horse':2A 'italo':15,17 'laid':3B 'not':6C 'pl':19 'sced':20 'set':16,18 'trapbeat':11 'we':13 'white':1A
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['80s', 'reggae', 'electronic', 'pop', 'danish']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620532994.4589236  (2021-05-09 06:03:14)
                             'size'  13865417