======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '160'
                                          'artist'  'The XX'
                                     'text_people'  ''
                                         'release'  'XX'
                                           'title'  'Islands'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'post punk', 'electronic', 'british']"
                                     'discogstags'  "['electronic', 'rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '11'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '124.087'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '11+77908F9672057B484BB36FFDA'
'COMM:iTunNORM:eng'                                 (' 0000076A 00000534 0000A240 00003584 0001EF82 000264A7 00008E31 00008C68 '
 '0001E724 00017A92')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008E8 00000000006C2688 00000000 003ACDE1 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '11+77908F9672057B484BB36FFDA00E71E9+13428347'
'TALB' (Album/Movie/Show title)                     'XX'
'TBPM' (BPM (beats per minute))                     '124.087'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'Itunes 8.2.0.23'
'TIT2' (Title/songname/content description)         'Islands'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'The XX'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/11'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'post punk', 'electronic', 'british']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.32 dB'
'TXXX:replaygain_track_peak'                        '0.397494'

========================== row from database ==========================
                                              'id'  1365562
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/The XX/XX/04 - islands.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  160
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  3861009
                                           'mtime'  1638554880
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 04 islands ifs songwriter indie rock
                                      'tag_artist'  The XX
                                     'tag_release'  XX
                                       'tag_title'  Islands
                                             'bpm'  124.087
                                    'search_title'  'islands':1
                                   'search_artist'  'the':1 'xx':2
                                  'search_release'  'xx':1
                                     'search_rest'  '00poprockelectronic':1 'ifs':5 'indie':7 'indierock':3 'islands':4 'poprock':2 'rock':8 'songwriter':6
                                    'search_combo'  '00poprockelectronic':5 'ifs':9 'indie':11 'indierock':7 'islands':1A,8 'poprock':6 'rock':12 'songwriter':10 'the':2B 'xx':3B,4C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'post punk', 'electronic', 'british']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic', 'rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1638554879.5387082  (2021-12-03 19:07:59)
                             'size'  3861009