======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '193'
                                          'artist'  'Jim Stafford'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'comedy', 'pop life', 'folk', 'nichopoulooza']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-unsorted'
                                             'bpm'  '122.363'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '122.363'
'TCON' (Content type, a.k.a. Genre)                 'ifs-unsorted'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jim Stafford'
'TXXX:Mp3gain_minmax'                               '140,194'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'comedy', 'pop life', 'folk', 'nichopoulooza']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.28 dB'
'TXXX:replaygain_track_peak'                        '0.543115'

========================== row from database ==========================
                                              'id'  1286382
                                            'path'  /data/Music/Bulk/00poprockelectronic/Clean/Jim Stafford -  My Girl Bill.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  193
                                           'genre'  ifs-unsorted
                                        'filesize'  3872353
                                           'mtime'  1620568692
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Clean My Girl Bill ifs unsorted
                                      'tag_artist'  Jim Stafford
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  122.363
                                    'search_title'  None
                                   'search_artist'  'jim':1 'stafford':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'bill':5 'clean':2 'girl':4 'ifs':6 'my':3 'unsorted':7
                                    'search_combo'  '00poprockelectronic':3 'bill':7 'clean':4 'girl':6 'ifs':8 'jim':1B 'my':5 'stafford':2B 'unsorted':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-piano-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'comedy', 'pop life', 'folk', 'nichopoulooza']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620568692.1486282  (2021-05-09 15:58:12)
                             'size'  3872353