======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '132'
                                          'artist'  'Flanders & Swann'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The Gas Man Cometh'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-2', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['comedy', 'humour', '1008rh', 'new to 1', 'english']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'entertaining-unsorted'
                                             'bpm'  '135.637'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '135.637'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-unsorted'
'TIT2' (Title/songname/content description)         'The Gas Man Cometh'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Flanders & Swann'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['comedy', 'humour', '1008rh', 'new to 1', 'english']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.97 dB'
'TXXX:replaygain_track_peak'                        '0.654903'

========================== row from database ==========================
                                              'id'  1343986
                                            'path'  /data/Music/Bulk/00poprockelectronic/Clean/Flanders & Swann - The Gas Man Cometh.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  132
                                           'genre'  entertaining-unsorted
                                        'filesize'  2124745
                                           'mtime'  1637330813
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Clean entertaining unsorted
                                      'tag_artist'  Flanders & Swann
                                     'tag_release'  None
                                       'tag_title'  The Gas Man Cometh
                                             'bpm'  135.637
                                    'search_title'  'cometh':4 'gas':2 'man':3 'the':1
                                   'search_artist'  'flanders':1 'swann':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'clean':2 'entertaining':3 'unsorted':4
                                    'search_combo'  '00poprockelectronic':7 'clean':8 'cometh':4A 'entertaining':9 'flanders':5B 'gas':2A 'man':3A 'swann':6B 'the':1A 'unsorted':10
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['comedy', 'humour', '1008rh', 'new to 1', 'english']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330812.6047049  (2021-11-19 15:06:52)
                             'size'  2124745