======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '160'
                                          'artist'  'Ella Fitzgerald'
                                     'text_people'  ''
                                         'release'  'Deja Vu Retro Gold Collection'
                                           'title'  'If Dreams Come True'
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                                      'lastfmtags'  "['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  '20'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '87.672'
                                             'key'  '6A'
                                        'acoustid'  '3f2a9859-3dcb-4da7-a90a-20c3febe5eee'
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))                     '87.672'
'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)         'If Dreams Come True'
'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)               '15/20'
'TSO2'                                              'Fitzgerald, Ella'
'TSOP' (Performer sort order)                       'Fitzgerald, Ella'
'TXXX:ASIN'                                         'B000005S8E'
'TXXX:Acoustid Id'                                  '3f2a9859-3dcb-4da7-a90a-20c3febe5eee'
'TXXX:Artists'                                      'Ella Fitzgerald'
'TXXX:BARCODE'                                      '076119401823'
'TXXX:CATALOGNUMBER'                                '94018'
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'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'                 '57b999b6-a02b-36a4-9f55-fd3e270bed91'
'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'                                     '15'
'TXXX:lastfmtags'                                   ['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']
'TXXX:originalyear'                                 '1998'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.81 dB'
'TXXX:replaygain_track_peak'                        '0.411546'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd56c4268-6af6-4f54-8b21-45690bbb7114')

========================== row from database ==========================
                                              'id'  779843
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Fitzgerald, Ella/The Gold Collection/Ella Fitzgerald - If Dreams Come True - 15.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  160
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  2635782
                                           'mtime'  1620528983
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Fitzgerald, The 15 prerock jb jazz vocal
                                      'tag_artist'  Ella Fitzgerald
                                     'tag_release'  Deja Vu Retro Gold Collection
                                       'tag_title'  If Dreams Come True
                                             'bpm'  87.672
                                    'search_title'  'come':3 'dreams':2 'if':1 'true':4
                                   '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':11C 'come':3A 'country':15 'deja':7C 'dreams':2A 'ella':5B 'exotica':13 'fitzgerald':6B,16,17 'gold':10C 'if':1A 'jazz':12 'jb':20 'oldies':14 'prerock':19 'retro':9C 'the':18 'true':4A 'vocal':21 'vu':8C
                                    'tag_tracknum'  15
                                      '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-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528983.046088  (2021-05-09 04:56:23)
                             'size'  2635782