======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '186'
                                          'artist'  'The Ink Spots'
                                     'text_people'  ''
                                         'release'  'The Very Best of The Ink Spots'
                                           'title'  "If I Didn't Care"
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                                      'lastfmtags'  "['vocal jazz', 'jazz', '40s', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '20'
                                            'date'  '2009'
                                        'comments'  ''
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                                             'bpm'  '91'
                                             'key'  '3A'
                                        'acoustid'  'c9aad592-2769-4992-bc3f-5b74a8f752bc'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'The Very Best of The Ink Spots'
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'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-salon or easy'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         "If I Didn't Care"
'TKEY' (Initial key)                                '3A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Ink Spots'
'TPE2' (Band/orchestra/accompaniment)               'The Ink Spots'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/20'
'TSO2'                                              'Ink Spots, The'
'TSOP' (Performer sort order)                       'Ink Spots, The'
'TSRC' (ISRC (international standard recording code))  'USQX90900444'
'TXXX:Acoustid Id'                                  'c9aad592-2769-4992-bc3f-5b74a8f752bc'
'TXXX:Artists'                                      'The Ink Spots'
'TXXX:MusicBrainz Album Artist Id'                  '75f47650-8a52-494a-8334-c5279bc6db09'
'TXXX:MusicBrainz Album Id'                         '90bd1489-b2b5-44c5-8979-7fefa47c376c'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '75f47650-8a52-494a-8334-c5279bc6db09'
'TXXX:MusicBrainz Release Group Id'                 '6b5993ff-954f-43aa-a20a-aceb19390050'
'TXXX:MusicBrainz Release Track Id'                 '7e4d5fe2-f6af-36a7-97e4-e5ba3b29ed73'
'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:lastfmtags'                                   ['vocal jazz', 'jazz', '40s', 'oldies', 'swing']
'TXXX:originalyear'                                 '2009'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.48 dB'
'TXXX:replaygain_track_peak'                        '0.611249'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'69aa3fd1-6153-4f8e-813f-294e2e55793f')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The Ink Spots/Ink Spots - The Very Best of The Ink Spots_01 - If I Didn_t Care.mp3
                                         'working'  None
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                                    'duration_sec'  186
                                           'genre'  prerock-jb-jazz-soft-salon or easy
                                        'filesize'  7524799
                                           'mtime'  1620536349
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Spots_01 Didn_t prerock jb jazz soft salon or easy
                                      'tag_artist'  The Ink Spots
                                     'tag_release'  The Very Best of The Ink Spots
                                       'tag_title'  If I Didn't Care
                                             'bpm'  91.0
                                    'search_title'  'care':6 'didn':3 'didnt':5 'i':2 'if':1 't':4
                                   'search_artist'  'ink':2 'spots':3 'the':1
                                  'search_release'  'best':3 'ink':5 'of':4 'spots':6 'the':1 'very':2
                                     'search_rest'  '01':6 'country':4 'didn':7 'easy':14 'exotica':2 'jazz':1 'jb':10 'oldies':3 'or':13 'prerock':9 'salon':12 'soft':11 'spots':5 't':8
                                    'search_combo'  '01':21 'best':12C 'care':6A 'country':19 'didn':3A,22 'didnt':5A 'easy':29 'exotica':17 'i':2A 'if':1A 'ink':8B,14C 'jazz':16 'jb':25 'of':13C 'oldies':18 'or':28 'prerock':24 'salon':27 'soft':26 'spots':9B,15C,20 't':4A,23 'the':7B,10C 'very':11C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['vocal jazz', 'jazz', '40s', 'oldies', 'swing']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536348.7122302  (2021-05-09 06:59:08)
                             'size'  7524799