======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '254'
                                          'artist'  'Deep Blue Something'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Breakfast At Tiffany's"
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', '90s', 'pop', 'american', 'rock', 'alternative']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '110.302'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '110.302'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         "Breakfast At Tiffany's"
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Deep Blue Something'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'pop', 'american', 'rock', 'alternative']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.05 dB'
'TXXX:replaygain_track_peak'                        '0.541562'

========================== row from database ==========================
                                              'id'  1513133
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Deep Blue Something - Breakfast At Tiffany_s.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  254
                                           'genre'  rock-unsorted
                                        'filesize'  4079380
                                           'mtime'  1620392311
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Tiffany_s rock unsorted
                                      'tag_artist'  Deep Blue Something
                                     'tag_release'  None
                                       'tag_title'  Breakfast At Tiffany's
                                             'bpm'  110.302
                                    'search_title'  'at':2 'breakfast':1 's':4 'tiffany':3 'tiffanys':5
                                   'search_artist'  'blue':2 'deep':1 'something':3
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'loose':3,4 'rock':9 's':8 'tiffany':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':9 'at':2A 'blue':7B 'breakfast':1A 'deep':6B 'files':13,14 'loose':11,12 'rock':17 's':4A,16 'something':8B 'tiffany':3A,15 'tiffanys':5A 'unsorted':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'pop', 'american', 'rock', 'alternative']
                                        'tag_date'  1995
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620392310.6075182  (2021-05-07 14:58:30)
                             'size'  4079380