======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '146'
                                          'artist'  'Golden Gate Quartet'
                                     'text_people'  ''
                                         'release'  'Complete Recorded Works in Chronological Order, Vol. 1: 1937-1938'
                                           'title'  'Swanee River'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['gospel', 'blues', 'spiritual', 'jazz', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '22'
                                      'tracktotal'  '23'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-namerica-gospel'
                                             'bpm'  '134.021'
                                             'key'  '5A'
                                        'acoustid'  'c1fd6367-0763-479c-887d-06c15270817f'
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))                     '134.021'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-gospel'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Swanee River'
'TKEY' (Initial key)                                '5A'
'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)               '22/23'
'TSO2'                                              'Golden Gate Jubilee Quartet, The'
'TSOP' (Performer sort order)                       'Golden Gate Jubilee Quartet, The'
'TXXX:Acoustid Id'                                  'c1fd6367-0763-479c-887d-06c15270817f'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.30 dB'
'TXXX:replaygain_track_peak'                        '0.701837'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fa6cad7d-7fbf-43e2-b340-67779dce2c50')

========================== row from database ==========================
                                              'id'  763075
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Golden Gate Quartet--Complete Works 1937-44 (Document-5CD)/Vol.1 1937-1938/22 - Swanee River.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  146
                                           'genre'  loc-namerica-gospel
                                        'filesize'  2344249
                                           'mtime'  1621627966
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 44 (Document 5CD) Vol.1 22 loc namerica gospel
                                      'tag_artist'  Golden Gate Quartet
                                     'tag_release'  Complete Recorded Works in Chronological Order, Vol. 1: 1937-1938
                                       'tag_title'  Swanee River
                                             'bpm'  134.021
                                    'search_title'  'river':2 'swanee':1
                                   '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 '22':13 '44':5 '5cd':8,9 'country':4 'document':6,7 'exotica':2 'gospel':16 'jazz':1 'loc':14 'namerica':15 'oldies':3 'vol':10 'vol1':12
                                    'search_combo'  '1':15C,16C,30 '1937':17C '19371938':19C '1938':18C '22':32 '44':24 '5cd':27,28 'chronological':10C 'complete':6C 'country':23 'document':25,26 'exotica':21 'gate':4B 'golden':3B 'gospel':35 'in':9C 'jazz':20 'loc':33 'namerica':34 'oldies':22 'order':11C,12C 'quartet':5B 'recorded':7C 'river':2A 'swanee':1A 'vol':13C,14C,29 'vol1':31 'works':8C
                                    'tag_tracknum'  22
                                      'num_images'  0
                                             'key'  5A
                                           '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['gospel', 'blues', 'spiritual', 'jazz', 'soul']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627966.0256724  (2021-05-21 22:12:46)
                             'size'  2344249