======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '206'
                                          'artist'  "The King's Singers"
                                     'text_people'  ''
                                         'release'  'A Tribute to the Comedian Harmonists'
                                           'title'  'The Donkey Serenade'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['a capella', 'a cappella', 'choral', 'vocal', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '16'
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-a capella'
                                             'bpm'  '139.370'
                                             'key'  '8A'
                                        'acoustid'  '53643794-b36e-4e6a-9381-3d566b152c7d'
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'www.dvdvideosoft.com'
'TALB' (Album/Movie/Show title)                     'A Tribute to the Comedian Harmonists'
'TBPM' (BPM (beats per minute))                     '139.370'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-a capella'
'TDOR' (Original release time)                      '1985'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'The Donkey Serenade'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               "The King's Singers"
'TPE2' (Band/orchestra/accompaniment)               "The King's Singers"
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '12/16'
'TSO2'                                              "King's Singers, The"
'TSOP' (Performer sort order)                       "King's Singers, The"
'TXXX:Acoustid Id'                                  '53643794-b36e-4e6a-9381-3d566b152c7d'
'TXXX:MusicBrainz Album Artist Id'                  '9170ee99-b422-4134-a1f9-9f4e5aaf8127'
'TXXX:MusicBrainz Album Id'                         '90da768f-44a6-4e37-ab1c-c0dc2bec93a8'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '9170ee99-b422-4134-a1f9-9f4e5aaf8127'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['a capella', 'a cappella', 'choral', 'vocal', 'classical']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.88 dB'
'TXXX:replaygain_track_peak'                        '0.654841'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'a7772945-caf9-4ef9-8336-a81274364243')

========================== row from database ==========================
                                              'id'  770792
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/KS2/12_The Donkey Serenade.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  206
                                           'genre'  ifs-songwriter-a capella
                                        'filesize'  8244212
                                           'mtime'  1628355659
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos KS2 12_The ifs songwriter capella
                                      'tag_artist'  The King's Singers
                                     'tag_release'  A Tribute to the Comedian Harmonists
                                       'tag_title'  The Donkey Serenade
                                             'bpm'  139.37
                                    'search_title'  'donkey':2 'serenade':3 'the':1
                                   'search_artist'  'king':2 'kings':4 's':3 'singers':5 'the':1
                                  'search_release'  'a':1 'comedian':5 'harmonists':6 'the':4 'to':3 'tribute':2
                                     'search_rest'  '00singer':1 '12':5 'capella':8 'eos':3 'ifs':7 'ks2':4 'songwriter':2 'the':6
                                    'search_combo'  '00singer':15 '12':19 'a':9C 'capella':22 'comedian':13C 'donkey':2A 'eos':17 'harmonists':14C 'ifs':21 'king':5B 'kings':7B 'ks2':18 's':6B 'serenade':3A 'singers':8B 'songwriter':16 'the':1A,4B,12C,20 'to':11C 'tribute':10C
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  8A
                                           '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['a capella', 'a cappella', 'choral', 'vocal', 'classical']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628355658.9276028  (2021-08-07 19:00:58)
                             'size'  8244212