======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '164'
                                          'artist'  'Golden Gate Quartet'
                                     'text_people'  'Traditional'
                                         'release'  'Complete Recorded Works in Chronological Order, Volume 3: 1939'
                                           'title'  'Whoa Babe'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-2', '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'  '15'
                                      'tracktotal'  '25'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'loc-namerica-gospel'
                                             'bpm'  '143.213'
                                             'key'  '1A'
                                        'acoustid'  'c7c13274-5d7a-47c6-bc8d-702b5667972f'
rest: ''

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

'COMM::eng'                                         '[mudmashers]'
'COMM:ID3v1 Comment:XXX'                            '[mudmashers]'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x009\x00+\x009\x006\x00+\x002\x00E\x003\x00A\x00+\x005\x00C\x002\x00F\x00+\x008\x000\x007\x005\x00+\x00B\x007\x002\x005\x00+\x00E\x003\x001\x00A\x00+\x001\x001\x004\x003\x007\x00+\x001\x003\x00E\x005\x00B\x00+\x001\x006\x007\x00C\x000\x00+\x001\x009\x00A\x00A\x009\x00+\x001\x00C\x00C\x00C\x004\x00+\x001\x00F\x001\x00A\x00B\x00+\x002\x002\x004\x001\x007\x00+\x002\x005\x00D\x00A\x002\x00+\x002\x008\x00F\x006\x009\x00+\x002\x00B\x00F\x00B\x009\x00+\x002\x00F\x002\x001\x008\x00+\x003\x002\x008\x000\x00A\x00+\x003\x005\x001\x005\x007\x00+\x003\x008\x001\x002\x001\x00+\x003\x00A\x00C\x001\x006\x00+\x003\x00D\x003\x002\x001\x00+\x004\x000\x008\x00A\x007\x00+\x004\x003\x001\x00E\x00D\x00+\x004\x006\x008\x009\x004\x00+\x004\x009\x002\x002\x008\x00\x00\x00')
'PRIV:AverageLevel:´\t\x00\x00'                     PRIV(owner='AverageLevel', data=b'\xb4\t\x00\x00')
'PRIV:PeakValue:tf\x00\x00'                         PRIV(owner='PeakValue', data=b'tf\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x003\x005\x009\x005\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x002\x002\x009\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x005\x000\x004\x004\x005\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x003\x005\x009\x005\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x002\x002\x009\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x005\x000\x004\x004\x005\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:r°\x0f\x8dý§\x85A¡\x1fu\x91[pH\x90'  PRIV(owner='WM/WMCollectionGroupID', data=b'r\xb0\x0f\x8d\xfd\xa7\x85A\xa1\x1fu\x91[pH\x90')
'PRIV:WM/WMCollectionID:r°\x0f\x8dý§\x85A¡\x1fu\x91[pH\x90'  PRIV(owner='WM/WMCollectionID', data=b'r\xb0\x0f\x8d\xfd\xa7\x85A\xa1\x1fu\x91[pH\x90')
'PRIV:WM/WMContentID:¥TÂ\x8fF¦(B\x89S\x00\x07{\x01Ú1'  PRIV(owner='WM/WMContentID', data=b'\xa5T\xc2\x8fF\xa6(B\x89S\x00\x07{\x01\xda1')
'TALB' (Album/Movie/Show title)                     'Complete Recorded Works in Chronological Order, Volume 3: 1939'
'TBPM' (BPM (beats per minute))                     '143.213'
'TCOM' (Composer)                                   'Traditional'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-gospel'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Whoa Babe'
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '164906'
'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)               '15/25'
'TSO2'                                              'Golden Gate Jubilee Quartet, The'
'TSOP' (Performer sort order)                       'Golden Gate Jubilee Quartet, The'
'TXXX:Acoustid Id'                                  'c7c13274-5d7a-47c6-bc8d-702b5667972f'
'TXXX:CATALOGNUMBER'                                'DOCD-5474'
'TXXX:MusicBrainz Album Artist Id'                  'f3a4c085-a8b7-43ea-88a4-62e416d104cd'
'TXXX:MusicBrainz Album Id'                         '2d7ff86a-fcdb-4cc1-af2e-0842471be5c6'
'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'                                       '2'
'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'                        '+2.62 dB'
'TXXX:replaygain_track_peak'                        '0.671987'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'b7cfcc79-0feb-4e89-808a-f33c1b72fb9d')

========================== row from database ==========================
                                              'id'  763441
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Golden Gate Quartet--Complete Works 1937-44 (Document-5CD)/Vol.3 1939/15 - Whoa Babe.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  164
                                           'genre'  loc-namerica-gospel
                                        'filesize'  2641965
                                           'mtime'  1621627977
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1937 44 (Document 5CD) Vol.3 15 loc namerica gospel
                                      'tag_artist'  Golden Gate Quartet
                                     'tag_release'  Complete Recorded Works in Chronological Order, Volume 3: 1939
                                       'tag_title'  Whoa Babe
                                             'bpm'  143.213
                                    'search_title'  'babe':2 'whoa':1
                                   'search_artist'  'gate':2 'golden':1 'quartet':3
                                  'search_release'  '1939':11 '3':9,10 'chronological':5 'complete':1 'in':4 'order':6,7 'recorded':2 'volume':8 'works':3
                                     'search_rest'  '1937':5 '3':12 '44':6 '5cd':9,10 'country':4 'document':7,8 'exotica':2 'gospel':16 'jazz':1 'loc':14 'namerica':15 'oldies':3 'vol':11 'vol3':13
                                    'search_combo'  '1937':21 '1939':16C '3':14C,15C,28 '44':22 '5cd':25,26 'babe':2A 'chronological':10C 'complete':6C 'country':20 'document':23,24 'exotica':18 'gate':4B 'golden':3B 'gospel':32 'in':9C 'jazz':17 'loc':30 'namerica':31 'oldies':19 'order':11C,12C 'quartet':5B 'recorded':7C 'vol':27 'vol3':29 'volume':13C 'whoa':1A 'works':8C
                                    'tag_tracknum'  15
                                      '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-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['gospel', 'blues', 'spiritual', 'jazz', 'soul']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627976.698143  (2021-05-21 22:12:56)
                             'size'  2641965