======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '194'
                                          'artist'  'Offspring'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Keep 'em Separated"
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['punk rock', 'punk', 'rock', 'alternative rock', 'alternative']"
                                     'discogstags'  "['house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '104.877'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '104.877'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TIT2' (Title/songname/content description)         "Keep 'em Separated"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Offspring'
'TXXX:Mp3gain_minmax'                               '123,187'
'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'                                        '2'
'TXXX:discogstags'                                  ['house', 'electronic']
'TXXX:lastfmtags'                                   ['punk rock', 'punk', 'rock', 'alternative rock', 'alternative']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+0.00 dB'
'TXXX:replaygain_track_peak'                        '0.579915'

========================== row from database ==========================
                                              'id'  1505673
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Offspring - Keep _em Separated.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  194
                                           'genre'  rock-gr-punk
                                        'filesize'  3121473
                                           'mtime'  1636912546
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] _em rock gr punk
                                      'tag_artist'  Offspring
                                     'tag_release'  None
                                       'tag_title'  Keep 'em Separated
                                             'bpm'  104.877
                                    'search_title'  'em':2,3 'keep':1 'separated':4
                                   'search_artist'  'offspring':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'em':7 'files':5,6 'gr':9 'loose':3,4 'punk':10 'rock':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':6 'em':2A,3A,12 'files':10,11 'gr':14 'keep':1A 'loose':8,9 'offspring':5B 'punk':15 'rock':13 'separated':4A 'unsorted':7
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['punk rock', 'punk', 'rock', 'alternative rock', 'alternative']
                                        'tag_date'  
                                     'discogstags'  ['house', 'electronic']

============================== file details ==============================
                                           'mtime'  1636912545.5476432  (2021-11-14 18:55:45)
                             'size'  3121473