======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '205'
                                          'artist'  'Ani DiFranco'
                                     'text_people'  ''
                                         'release'  'Badlands A Tribute to Bruce Springsteens Nebraska'
                                           'title'  'Used Cars'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'Q-PLAY-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['indie', 'folk rock', 'female vocalists', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '141.710'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Badlands A Tribute to Bruce Springsteens Nebraska'
'TBPM' (BPM (beats per minute))                     '141.710'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Used Cars'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ani DiFranco'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'folk rock', 'female vocalists', '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-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.508990'

========================== row from database ==========================
                                              'id'  1517018
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Ani DiFranco/MBZ;#Ani DiFranco;#Badlands A Tribute to Bruce Springsteen_s Nebraska;#07;#Used Cars.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  205
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  4923085
                                           'mtime'  1636401234
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos MBZ;#Ani DiFranco;#Badlands Springsteen_s Nebraska;#07;#Used ifs songwriter eos
                                      'tag_artist'  Ani DiFranco
                                     'tag_release'  Badlands A Tribute to Bruce Springsteens Nebraska
                                       'tag_title'  Used Cars
                                             'bpm'  141.71
                                    'search_title'  'cars':2 'used':1
                                   'search_artist'  'ani':1 'di':3 'difranco':2 'franco':4
                                  'search_release'  'a':2 'badlands':1 'bruce':5 'nebraska':7 'springsteens':6 'to':4 'tribute':3
                                     'search_rest'  '00singer':1 '00songwriter':4 '07':16,19 'ani':6,8 'badlands':10,12,24,26 'di':22 'difranco':9,11 'eos':3 'franco':23,25 'ifs':21 'mbz':5,7 'nebraska':15,18 's':14 'songwriter':2 'springsteen':13 'used':17,20
                                    'search_combo'  '00singer':14 '00songwriter':17 '07':29,32 'a':8C 'ani':3B,19,21 'badlands':7C,23,25,37,39 'bruce':11C 'cars':2A 'di':5B,35 'difranco':4B,22,24 'eos':16 'franco':6B,36,38 'ifs':34 'mbz':18,20 'nebraska':13C,28,31 's':27 'songwriter':15 'springsteen':26 'springsteens':12C 'to':10C 'tribute':9C 'used':1A,30,33
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-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-PLAY-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'folk rock', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636401234.0505693  (2021-11-08 20:53:54)
                             'size'  4923085