======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '193'
                                          'artist'  'The Nat King Cole Trio'
                                     'text_people'  'united states'
                                         'release'  'The Complete Capitol Recordings of the Nat King Cole Trio'
                                           'title'  "I'll String Along With You"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
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 "'Q-PIANO-2', 'q-chart-4', 'q-drums-1', 'q-other-2', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', '60s', 'vocal', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '19'
                                            'date'  '1942'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing'
                                             'bpm'  '137'
                                             'key'  '8B'
                                        'acoustid'  'f04f2c98-dcb8-4dfd-846d-e887d4686d7f'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'cd 9'
'TALB' (Album/Movie/Show title)                     'The Complete Capitol Recordings of the Nat King Cole Trio'
'TBPM' (BPM (beats per minute))                     '137'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-soft-swing'
'TCOP' (Copyright message)                          'mosaic'
'TDOR' (Original release time)                      '1991'
'TDRC' (Recording time)                             '1942'
'TENC' (Encoded by)                                 '18xcd'
'TIT2' (Title/songname/content description)         "I'll String Along With You"
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'CD'
'TOPE' (Original artist(s)/performer(s))            'united states'
'TPE1' (Lead performer(s)/Soloist(s))               'The Nat King Cole Trio'
'TPE2' (Band/orchestra/accompaniment)               'The Nat King Cole Trio'
'TPOS' (Part of a set)                              '9/18'
'TPUB' (Publisher)                                  'Mosaic Records'
'TRCK' (Track number/Position in set)               '5/19'
'TSO2'                                              'Cole, Nat King, Trio, The'
'TSOP' (Performer sort order)                       'Cole, Nat King, Trio, The'
'TSRC' (ISRC (international standard recording code))  'USCA29500339'
'TXXX:ASIN'                                         'B000002TNU'
'TXXX:Acoustid Id'                                  'f04f2c98-dcb8-4dfd-846d-e887d4686d7f'
'TXXX:Artists'                                      'The Nat King Cole Trio'
'TXXX:BARCODE'                                      '724382799429'
'TXXX:CATALOGNUMBER'                                'MD18-138'
'TXXX:MusicBrainz Album Artist Id'                  '7739b88f-8d40-4af5-b4d4-5e5e53755fd5'
'TXXX:MusicBrainz Album Id'                         '4142ea0e-cbd8-439a-8a98-5ce07a91df61'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '7739b88f-8d40-4af5-b4d4-5e5e53755fd5'
'TXXX:MusicBrainz Release Group Id'                 '801d1505-5773-35f3-a9d7-d7cdbb38492a'
'TXXX:MusicBrainz Release Track Id'                 'f758aa65-b9c6-30d4-b143-e3fa81d22a46'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['blues', 'jazz', '60s', 'vocal', 'swing']
'TXXX:originalyear'                                 '1991'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.95 dB'
'TXXX:replaygain_track_peak'                        '0.696848'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'001b8fc1-9499-4fe1-8045-8e7835497164')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The Nat King Cole Trio - cd 09 [192k]/05 - i_ll string along with you (n2).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  193
                                           'genre'  prerock-jb-jazz-soft-swing
                                        'filesize'  4724583
                                           'mtime'  1620536523
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country cd 09 [192k] 05 i_ll string along with you (n2) prerock jb jazz soft swing
                                      'tag_artist'  The Nat King Cole Trio
                                     'tag_release'  The Complete Capitol Recordings of the Nat King Cole Trio
                                       'tag_title'  I'll String Along With You
                                             'bpm'  137.0
                                    'search_title'  'along':5 'i':1 'ill':3 'll':2 'string':4 'with':6 'you':7
                                   'search_artist'  'cole':4 'king':3 'nat':2 'the':1 'trio':5
                                  'search_release'  'capitol':3 'cole':8 'complete':2 'king':7 'nat':6 'of':5 'recordings':4 'the':1 'trio':9
                                     'search_rest'  '192k':6,7 'along':11 'cd':5 'country':4 'exotica':2 'i':8 'jazz':1 'jb':17 'll':9 'n2':14,15 'oldies':3 'prerock':16 'soft':18 'string':10 'swing':19 'with':12 'you':13
                                    'search_combo'  '192k':27,28 'along':5A,32 'capitol':15C 'cd':26 'cole':11B,20C 'complete':14C 'country':25 'exotica':23 'i':1A,29 'ill':3A 'jazz':22 'jb':38 'king':10B,19C 'll':2A,30 'n2':35,36 'nat':9B,18C 'of':17C 'oldies':24 'prerock':37 'recordings':16C 'soft':39 'string':4A,31 'swing':40 'the':8B,13C 'trio':12B,21C 'with':6A,33 'you':7A,34
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'jazz', '60s', 'vocal', 'swing']
                                        'tag_date'  1942
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536522.5391064  (2021-05-09 07:02:02)
                             'size'  4724583