======================== unified (from filesystem) ========================
                                         'bitrate'  '80.0'
                                        'duration'  '330'
                                          'artist'  'Marais and Miranda'
                                     'text_people'  ''
                                         'release'  'Ballads of Long Ago'
                                           'title'  'Legend of St. Nicholas (French)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['nature', 'science', 'folk', 'eductional', 'educational']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '12'
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '105.9'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         "Columbia ML 4894, mono, from the early to mid 1950's"
'TALB' (Album/Movie/Show title)                     'Ballads of Long Ago'
'TBPM' (BPM (beats per minute))                     '105.9'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '1960'
'TENC' (Encoded by)                                 'SoundJam MP'
'TIT2' (Title/songname/content description)         'Legend of St. Nicholas (French)'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Marais and Miranda'
'TRCK' (Track number/Position in set)               '5/12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['nature', 'science', 'folk', 'eductional', 'educational']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+2.40 dB'
'TXXX:replaygain_track_peak'                        '0.761781'

========================== row from database ==========================
                                              'id'  1378945
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Marais and Miranda/ballads of long ago/05 legend of st. nicholas.mp3
                                         'working'  None
                                         'bitrate'  80
                                    'duration_sec'  330
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  3306017
                                           'mtime'  1636400735
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos ballads long ago 05 legend st. nicholas ifs songwriter folk
                                      'tag_artist'  Marais and Miranda
                                     'tag_release'  Ballads of Long Ago
                                       'tag_title'  Legend of St. Nicholas (French)
                                             'bpm'  105.9
                                    'search_title'  'french':6,7 'legend':1 'nicholas':5 'of':2 'st':3,4
                                   'search_artist'  'and':2 'marais':1 'miranda':3
                                  'search_release'  'ago':4 'ballads':1 'long':3 'of':2
                                     'search_rest'  '00singer':1 'ago':6 'ballads':4 'eos':3 'folk':12 'ifs':11 'legend':7 'long':5 'nicholas':10 'songwriter':2 'st':8,9
                                    'search_combo'  '00singer':15 'ago':14C,20 'and':9B 'ballads':11C,18 'eos':17 'folk':26 'french':6A,7A 'ifs':25 'legend':1A,21 'long':13C,19 'marais':8B 'miranda':10B 'nicholas':5A,24 'of':2A,12C 'songwriter':16 'st':3A,4A,22,23
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['nature', 'science', 'folk', 'eductional', 'educational']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400735.1548533  (2021-11-08 20:45:35)
                             'size'  3306017