======================== unified (from filesystem) ========================
                                         'bitrate'  '56.0'
                                        'duration'  '306'
                                          'artist'  'Edwin Hawkins Singers'
                                     'text_people'  ''
                                         'release'  'Super hits of the Sixties 1-4'
                                           'title'  'Oh happy day'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['gospel', 'soul', '60s', '70s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '120.0'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Super hits of the Sixties 1-4'
'TBPM' (BPM (beats per minute))                     '120.0'
'TIT2' (Title/songname/content description)         'Oh happy day'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Edwin Hawkins Singers'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['gospel', 'soul', '60s', '70s']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.14 dB'
'TXXX:replaygain_track_peak'                        '0.543533'

========================== row from database ==========================
                                              'id'  1462491
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Edwin Hawkins Singers - Oh happy day.mp3
                                         'working'  None
                                         'bitrate'  56
                                    'duration_sec'  306
                                           'genre'  
                                        'filesize'  2151409
                                           'mtime'  1652397955
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files]
                                      'tag_artist'  Edwin Hawkins Singers
                                     'tag_release'  Super hits of the Sixties 1-4
                                       'tag_title'  Oh happy day
                                             'bpm'  120.0
                                    'search_title'  'day':3 'happy':2 'oh':1
                                   'search_artist'  'edwin':1 'hawkins':2 'singers':3
                                  'search_release'  '1':6 '14':8 '4':7 'hits':2 'of':3 'sixties':5 'super':1 'the':4
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'loose':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':15 '1':12C '14':14C '4':13C 'day':3A 'edwin':4B 'files':19,20 'happy':2A 'hawkins':5B 'hits':8C 'loose':17,18 'of':9C 'oh':1A 'singers':6B 'sixties':11C 'super':7C 'the':10C 'unsorted':16
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']
                                      'lastfmtags'  ['gospel', 'soul', '60s', '70s']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397955.090736  (2022-05-13 01:25:55)
                             'size'  2151409