======================== unified (from filesystem) ========================
                                         'bitrate'  '165.223'
                                        'duration'  '179'
                                          'artist'  'Louvin Brothers'
                                     'text_people'  ''
                                         'release'  "Sex, Drugs, Rock 'n' Roll, God & The Devil"
                                           'title'  "Satan's Jewel Crown"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'bluegrass', 'classic country', 'close harmony', 'gospel']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'prerock-country'
                                             'bpm'  '142.4'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Sex, Drugs, Rock 'n' Roll, God & The Devil"
'TBPM' (BPM (beats per minute))                     '142.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-country'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         "Satan's Jewel Crown"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Louvin Brothers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '19'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'bluegrass', 'classic country', 'close harmony', 'gospel']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.44 dB'
'TXXX:replaygain_track_peak'                        '0.530580'

========================== row from database ==========================
                                              'id'  1527540
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - Sex, Drugs, Rock _n_ Roll, God & The Devil/19 - louvin brothers - satan_s jewel crown.mp3
                                         'working'  None
                                         'bitrate'  165
                                    'duration_sec'  179
                                           'genre'  prerock-country
                                        'filesize'  3721871
                                           'mtime'  1621629056
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va _n_ 19 louvin brothers satan_s jewel crown prerock country
                                      'tag_artist'  Louvin Brothers
                                     'tag_release'  Sex, Drugs, Rock 'n' Roll, God & The Devil
                                       'tag_title'  Satan's Jewel Crown
                                             'bpm'  142.4
                                    'search_title'  'crown':5 'jewel':4 's':2 'satan':1 'satans':3
                                   'search_artist'  'brothers':2 'louvin':1
                                  'search_release'  'devil':12 'drugs':3,4 'god':10 'n':6,7 'rock':5 'roll':8,9 'sex':1,2 'the':11
                                     'search_rest'  '19':3 'brothers':5 'country':11 'crown':9 'jewel':8 'louvin':4 'n':2 'prerock':10 's':7 'satan':6 'va':1
                                    'search_combo'  '19':22 'brothers':7B,24 'country':30 'crown':5A,28 'devil':19C 'drugs':10C,11C 'god':17C 'jewel':4A,27 'louvin':6B,23 'n':13C,14C,21 'prerock':29 'rock':12C 'roll':15C,16C 's':2A,26 'satan':1A,25 'satans':3A 'sex':8C,9C 'the':18C 'va':20
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['country', 'bluegrass', 'classic country', 'close harmony', 'gospel']
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629056.4262428  (2021-05-21 22:30:56)
                             'size'  3721871