======================== unified (from filesystem) ========================
                                         'bitrate'  '205.3'
                                        'duration'  '260'
                                          'artist'  'Doobie Brothers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Black Water'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['classic rock', 'rock', '70s', 'southern rock', 'soft rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-pl-billboard'
                                             'bpm'  '84.6'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '84.6'
'TCON' (Content type, a.k.a. Genre)                 'set-pl-billboard'
'TIT2' (Title/songname/content description)         'Black Water'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Doobie Brothers'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', 'rock', '70s', 'southern rock', 'soft rock']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.40 dB'
'TXXX:replaygain_track_peak'                        '0.835095'

========================== row from database ==========================
                                              'id'  1476991
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Doobie Brothers - Black Water.mp3
                                         'working'  None
                                         'bitrate'  205
                                    'duration_sec'  260
                                           'genre'  set-pl-billboard
                                        'filesize'  6686122
                                           'mtime'  1652397954
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] set pl billboard
                                      'tag_artist'  Doobie Brothers
                                     'tag_release'  None
                                       'tag_title'  Black Water
                                             'bpm'  84.6
                                    'search_title'  'black':1 'water':2
                                   'search_artist'  'brothers':2 'doobie':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'billboard':9 'files':5,6 'loose':3,4 'pl':8 'set':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':5 'billboard':13 'black':1A 'brothers':4B 'doobie':3B 'files':9,10 'loose':7,8 'pl':12 'set':11 'unsorted':6 'water':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['classic rock', 'rock', '70s', 'southern rock', 'soft rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397953.63898  (2022-05-13 01:25:53)
                             'size'  6686122