======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '183'
                                          'artist'  'The Louvin Brothers'
                                     'text_people'  'Charlie Louvin/Ira Louvin'
                                         'release'  'Music for Maniacs'
                                           'title'  'Satan is Real'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'gospel', 'bluegrass', 'close harmony', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '102.2'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_1:eng'                            'FC0B9E12+223224+18+150+10824+21959+32644+46074+59829+74184+87957+101737+114832+128068+142853+155602+165640+179786+193706+205019+218356'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '8'
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'TALB' (Album/Movie/Show title)                     'Music for Maniacs'
'TBPM' (BPM (beats per minute))                     '102.2'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Charlie Louvin/Ira Louvin'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '1960'
'TENC' (Encoded by)                                 'iTunes v6.0.4'
'TIT2' (Title/songname/content description)         'Satan is Real'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Louvin Brothers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Capitol'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['country', 'gospel', 'bluegrass', 'close harmony', 'classic country']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.52 dB'
'TXXX:replaygain_track_peak'                        '0.611855'

========================== row from database ==========================
                                              'id'  650082
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/The_Louvin_Brothers_-_Satan_is_Real.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  183
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  3678083
                                           'mtime'  1636916441
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music maniacs The_Louvin_Brothers_ _Satan_is_Real electronic experimental oddness
                                      'tag_artist'  The Louvin Brothers
                                     'tag_release'  Music for Maniacs
                                       'tag_title'  Satan is Real
                                             'bpm'  102.2
                                    'search_title'  'is':2 'real':3 'satan':1
                                   'search_artist'  'brothers':3 'louvin':2 'the':1
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  'brothers':5 'electronic':9 'experimental':10 'is':7 'louvin':4 'maniacs':2 'music':1 'oddness':11 'real':8 'satan':6 'the':3
                                    'search_combo'  'brothers':6B,14 'electronic':18 'experimental':19 'for':8C 'is':2A,16 'louvin':5B,13 'maniacs':9C,11 'music':7C,10 'oddness':20 'real':3A,17 'satan':1A,15 'the':4B,12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['country', 'gospel', 'bluegrass', 'close harmony', 'classic country']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636916441.3010347  (2021-11-14 20:00:41)
                             'size'  3678083