======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '253'
                                          'artist'  'Rufus Wainwright'
                                     'text_people'  ''
                                         'release'  'Want Two'
                                           'title'  'Crumb By Crumb'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', '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-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'canadian', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'pop', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '12'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '102.385'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '12+0055F63A1555054DAA5013135'
'COMM:iTunes_CDDB_IDs:eng'                          '12+0055F63A1555054DAA50131354747D7C+4701610'
'TALB' (Album/Movie/Show title)                     'Want Two'
'TBPM' (BPM (beats per minute))                     '102.385'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'iTunes v4.6.0.15'
'TIT2' (Title/songname/content description)         'Crumb By Crumb'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Rufus Wainwright'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '11/12'
'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'                                  ['rock', 'pop', 'pop rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'canadian', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.455082'

========================== row from database ==========================
                                              'id'  1355597
                                            'path'  /data/Music/Bulk/00poprockelectronic/Rufus Wainwright_/Want Two/11 Crumb By Crumb.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  253
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  6076616
                                           'mtime'  1636400712
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Wainwright_ 11 ifs songwriter folk
                                      'tag_artist'  Rufus Wainwright
                                     'tag_release'  Want Two
                                       'tag_title'  Crumb By Crumb
                                             'bpm'  102.385
                                    'search_title'  'by':2 'crumb':1
                                   'search_artist'  'rufus':1 'wainwright':2
                                  'search_release'  'two':2 'want':1
                                     'search_rest'  '00poprockelectronic':1 'folk':5 'ifs':3 'songwriter':4 'wainwright':2
                                    'search_combo'  '00poprockelectronic':7 'by':2A 'crumb':1A 'folk':11 'ifs':9 'rufus':3B 'songwriter':10 'two':6C 'wainwright':4B,8 'want':5C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'canadian', 'folk', 'singer songwriter']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'pop', 'pop rock']

============================== file details ==============================
                                           'mtime'  1636400711.95241  (2021-11-08 20:45:11)
                             'size'  6076616