======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '78'
                                          'artist'  "The King's Singers"
                                     'text_people'  ''
                                         'release'  'A Tribute to the Comedian Harmonists'
                                           'title'  'Hummelflug / Flight of the Bumble Bee'
                                           '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-1', 'q-piano-1', 'q-vocals-4', "
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                                      'lastfmtags'  "['a capella', 'a cappella', 'choral', 'vocal', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '16'
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-a capella'
                                             'bpm'  '85.851'
                                             'key'  '6A'
                                        'acoustid'  'e9bf47ea-fefb-43b2-a3a6-1069b92ca46c'
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))                     '85.851'
'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)         'Hummelflug / Flight of the Bumble Bee'
'TKEY' (Initial key)                                '6A'
'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)               '11/16'
'TSO2'                                              "King's Singers, The"
'TSOP' (Performer sort order)                       "King's Singers, The"
'TXXX:Acoustid Id'                                  'e9bf47ea-fefb-43b2-a3a6-1069b92ca46c'
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.63 dB'
'TXXX:replaygain_track_peak'                        '0.759015'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'41a5ff4f-1ee6-4944-98c0-de024eb6f214')

========================== row from database ==========================
                                              'id'  761058
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/KS2/11_Hummelflug Flight Of The Bumble Bee.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  78
                                           'genre'  ifs-songwriter-a capella
                                        'filesize'  3124212
                                           'mtime'  1628355659
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos KS2 11_Hummelflug Of ifs songwriter capella
                                      'tag_artist'  The King's Singers
                                     'tag_release'  A Tribute to the Comedian Harmonists
                                       'tag_title'  Hummelflug / Flight of the Bumble Bee
                                             'bpm'  85.851
                                    'search_title'  'bee':6 'bumble':5 'flight':2 'hummelflug':1 'of':3 'the':4
                                   '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 '11':5 'capella':9 'eos':3 'hummelflug':6 'ifs':8 'ks2':4 'of':7 'songwriter':2
                                    'search_combo'  '00singer':18 '11':22 'a':12C 'bee':6A 'bumble':5A 'capella':26 'comedian':16C 'eos':20 'flight':2A 'harmonists':17C 'hummelflug':1A,23 'ifs':25 'king':8B 'kings':10B 'ks2':21 'of':3A,24 's':9B 'singers':11B 'songwriter':19 'the':4A,7B,15C 'to':14C 'tribute':13C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  6A
                                           '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-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['a capella', 'a cappella', 'choral', 'vocal', 'classical']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628355658.9185765  (2021-08-07 19:00:58)
                             'size'  3124212