======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '173'
                                          'artist'  'Rosa Lee Hill'
                                     'text_people'  ''
                                         'release'  'Mississippi Delta Blues Vol. 1 - Blow My Blues Away'
                                           'title'  'Rosa Lee Hill - Pork And Beans'
                                           'quals'  ("['Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-syn-1', "
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 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['blues']"
                                     'discogstags'  "['country blues', 'blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '23'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'set-th-novelty'
                                             'bpm'  '87.824'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 0000050C 000004F6 000041D4 000038F1 0001BFC1 0000753E 00006706 00006641 '
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'COMM:iTunPGAP:eng'                                 '0'
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'COMM:iTunes_CDDB_IDs:eng'                          '23+104E27445AA954E61523FDBF8DC0B213+2714'
'TALB' (Album/Movie/Show title)                     'Mississippi Delta Blues Vol. 1 - Blow My Blues Away'
'TBPM' (BPM (beats per minute))                     '87.824'
'TCON' (Content type, a.k.a. Genre)                 'set-th-novelty'
'TDRC' (Recording time)                             '1994'
'TENC' (Encoded by)                                 'iTunes v7.5'
'TIT2' (Title/songname/content description)         'Rosa Lee Hill - Pork And Beans'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rosa Lee Hill'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '16/23'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['country blues', 'blues']
'TXXX:lastfmtags'                                   'blues'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.80 dB'
'TXXX:replaygain_track_peak'                        '0.476195'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Zimelis [Chow, Baby!]/Rosa Lee Hill - Pork And Beans.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  173
                                           'genre'  set-th-novelty
                                        'filesize'  4165756
                                           'mtime'  1620343091
                                   'redo_metaread'  0
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                                      'tag_artist'  Rosa Lee Hill
                                     'tag_release'  Mississippi Delta Blues Vol. 1 - Blow My Blues Away
                                       'tag_title'  Rosa Lee Hill - Pork And Beans
                                             'bpm'  87.824
                                    'search_title'  'and':5 'beans':6 'hill':3 'lee':2 'pork':4 'rosa':1
                                   'search_artist'  'hill':3 'lee':2 'rosa':1
                                  'search_release'  '1':6 'away':9 'blow':7 'blues':3 'delta':2 'mississippi':1 'my':8 'vol':4,5
                                     'search_rest'  'baby':8,9 'chow':6,7 'country':4 'exotica':2 'jazz':1 'novelty':12 'oldies':3 'set':10 'th':11 'zimelis':5
                                    'search_combo'  '1':15C 'and':5A 'away':18C 'baby':26,27 'beans':6A 'blow':16C 'blues':12C 'chow':24,25 'country':22 'delta':11C 'exotica':20 'hill':3A,9B 'jazz':19 'lee':2A,8B 'mississippi':10C 'my':17C 'novelty':30 'oldies':21 'pork':4A 'rosa':1A,7B 'set':28 'th':29 'vol':13C,14C 'zimelis':23
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues']
                                        'tag_date'  1994
                                     'discogstags'  ['country blues', 'blues']

============================== file details ==============================
                                           'mtime'  1620343090.7424757  (2021-05-07 01:18:10)
                             'size'  4165756