======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '167'
                                          'artist'  'Ella Fitzgerald'
                                     'text_people'  ''
                                         'release'  'Deja Vu Retro Gold Collection'
                                           'title'  'Ella'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '17'
                                      'tracktotal'  '20'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '85.888'
                                             'key'  '6A'
                                        'acoustid'  '820a510c-368f-43c7-b2e3-723d597fe8ca'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Deja Vu Retro Gold Collection'
'TBPM' (BPM (beats per minute))                     '85.888'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-vocal'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Ella'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Ella Fitzgerald'
'TPE2' (Band/orchestra/accompaniment)               'Ella Fitzgerald'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Retro'
'TRCK' (Track number/Position in set)               '17/20'
'TSO2'                                              'Fitzgerald, Ella'
'TSOP' (Performer sort order)                       'Fitzgerald, Ella'
'TXXX:ASIN'                                         'B000005S8E'
'TXXX:Acoustid Id'                                  '820a510c-368f-43c7-b2e3-723d597fe8ca'
'TXXX:Artists'                                      'Ella Fitzgerald'
'TXXX:BARCODE'                                      '076119401823'
'TXXX:CATALOGNUMBER'                                '94018'
'TXXX:Mp3gain_minmax'                               '000,189'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:MusicBrainz Album Artist Id'                  '54799c0e-eb45-4eea-996d-c4d71a63c499'
'TXXX:MusicBrainz Album Id'                         'd94736af-115c-4de3-a0cb-886dbc6ed4f4'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '54799c0e-eb45-4eea-996d-c4d71a63c499'
'TXXX:MusicBrainz Release Group Id'                 'b799e844-82f4-3282-a917-2936cad8b4d5'
'TXXX:MusicBrainz Release Track Id'                 '1b35fc68-44a1-35e1-8a46-402eadcffd67'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:Tracknum'                                     '17'
'TXXX:lastfmtags'                                   ['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']
'TXXX:originalyear'                                 '1998'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.99 dB'
'TXXX:replaygain_track_peak'                        '0.486355'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'5a6a51f3-2fc5-438c-bc95-4e4ab6377de1')

========================== row from database ==========================
                                              'id'  793933
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Fitzgerald, Ella/The Gold Collection/Ella Fitzgerald - Ella - 17.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  167
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  2746204
                                           'mtime'  1620528960
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Fitzgerald, The 17 prerock jb jazz vocal
                                      'tag_artist'  Ella Fitzgerald
                                     'tag_release'  Deja Vu Retro Gold Collection
                                       'tag_title'  Ella
                                             'bpm'  85.888
                                    'search_title'  'ella':1
                                   'search_artist'  'ella':1 'fitzgerald':2
                                  'search_release'  'collection':5 'deja':1 'gold':4 'retro':3 'vu':2
                                     'search_rest'  'country':4 'exotica':2 'fitzgerald':5,6 'jazz':1 'jb':9 'oldies':3 'prerock':8 'the':7 'vocal':10
                                    'search_combo'  'collection':8C 'country':12 'deja':4C 'ella':1A,2B 'exotica':10 'fitzgerald':3B,13,14 'gold':7C 'jazz':9 'jb':17 'oldies':11 'prerock':16 'retro':6C 'the':15 'vocal':18 'vu':5C
                                    'tag_tracknum'  17
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528959.665177  (2021-05-09 04:55:59)
                             'size'  2746204