======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '124'
                                          'artist'  'Golden Gate Quartet'
                                     'text_people'  ''
                                         'release'  'Complete Recorded Works in Chronological Order, Vol. 1: 1937-1938'
                                           'title'  'Lead Me on and On'
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 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
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                                      'lastfmtags'  "['gospel', 'blues', 'spiritual', 'jazz', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '23'
                                      'tracktotal'  '23'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-namerica-gospel'
                                             'bpm'  '117.740'
                                             'key'  '1A'
                                        'acoustid'  'c83df8a5-89a3-42b2-b1ef-e460f3a6c662'
rest: ''

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

'COMM::eng'                                         '[mudmashers]'
'COMM:ID3v1 Comment:XXX'                            '[mudmashers]'
'TALB' (Album/Movie/Show title)                     'Complete Recorded Works in Chronological Order, Vol. 1: 1937-1938'
'TBPM' (BPM (beats per minute))                     '117.740'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-gospel'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Lead Me on and On'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Golden Gate Jubilee Quartet'
'TPE2' (Band/orchestra/accompaniment)               'Golden Gate Quartet'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Document Records'
'TRCK' (Track number/Position in set)               '23/23'
'TSO2'                                              'Golden Gate Jubilee Quartet, The'
'TSOP' (Performer sort order)                       'Golden Gate Jubilee Quartet, The'
'TXXX:Acoustid Id'                                  'c83df8a5-89a3-42b2-b1ef-e460f3a6c662'
'TXXX:BARCODE'                                      '714298547221'
'TXXX:CATALOGNUMBER'                                'DOCD-5472'
'TXXX:MusicBrainz Album Artist Id'                  'f3a4c085-a8b7-43ea-88a4-62e416d104cd'
'TXXX:MusicBrainz Album Id'                         'cd1dc7e4-d4d9-4e96-aaf2-ea8f852e4b5d'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'f3a4c085-a8b7-43ea-88a4-62e416d104cd'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['gospel', 'blues', 'spiritual', 'jazz', 'soul']
'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'                        '+2.42 dB'
'TXXX:replaygain_track_peak'                        '0.589740'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c60ac225-415b-4e8d-960b-f1a394ca3eef')

========================== row from database ==========================
                                              'id'  763437
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Golden Gate Quartet--Complete Works 1937-44 (Document-5CD)/Vol.1 1937-1938/23 - Lead Me On And On.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  124
                                           'genre'  loc-namerica-gospel
                                        'filesize'  1991074
                                           'mtime'  1621627966
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 44 (Document 5CD) Vol.1 23 And loc namerica gospel
                                      'tag_artist'  Golden Gate Quartet
                                     'tag_release'  Complete Recorded Works in Chronological Order, Vol. 1: 1937-1938
                                       'tag_title'  Lead Me on and On
                                             'bpm'  117.74
                                    'search_title'  'and':4 'lead':1 'me':2 'on':3
                                   'search_artist'  'gate':2 'golden':1 'quartet':3
                                  'search_release'  '1':10,11 '1937':12 '19371938':14 '1938':13 'chronological':5 'complete':1 'in':4 'order':6,7 'recorded':2 'vol':8,9 'works':3
                                     'search_rest'  '1':11 '23':13 '44':5 '5cd':8,9 'and':14 'country':4 'document':6,7 'exotica':2 'gospel':17 'jazz':1 'loc':15 'namerica':16 'oldies':3 'vol':10 'vol1':12
                                    'search_combo'  '1':17C,18C,32 '1937':19C '19371938':21C '1938':20C '23':34 '44':26 '5cd':29,30 'and':4A,35 'chronological':12C 'complete':8C 'country':25 'document':27,28 'exotica':23 'gate':6B 'golden':5B 'gospel':38 'in':11C 'jazz':22 'lead':1A 'loc':36 'me':2A 'namerica':37 'oldies':24 'on':3A 'order':13C,14C 'quartet':7B 'recorded':9C 'vol':15C,16C,31 'vol1':33 'works':10C
                                    'tag_tracknum'  23
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', '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'  ['gospel', 'blues', 'spiritual', 'jazz', 'soul']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627966.0263839  (2021-05-21 22:12:46)
                             'size'  1991074