======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '116'
                                          'artist'  'Bad Religion'
                                     'text_people'  ''
                                         'release'  'The Gray Race'
                                           'title'  'Nobody Listens'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['political', 'punk rock', 'punk', 'alternative', 'rock']"
                                     'discogstags'  "['rock', 'punk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '125.238'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Gray Race'
'TBPM' (BPM (beats per minute))                     '125.238'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Nobody Listens'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bad Religion'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'punk']
'TXXX:lastfmtags'                                   ['political', 'punk rock', 'punk', 'alternative', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.55 dB'
'TXXX:replaygain_track_peak'                        '0.407937'

========================== row from database ==========================
                                              'id'  1326192
                                            'path'  /data/Music/Bulk/00poprockelectronic/Bad Religion/The Grey Race/Bad Religion - Nobody Listens.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  116
                                           'genre'  rock-gr-punk
                                        'filesize'  2790836
                                           'mtime'  1622659259
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Grey rock gr punk
                                      'tag_artist'  Bad Religion
                                     'tag_release'  The Gray Race
                                       'tag_title'  Nobody Listens
                                             'bpm'  125.238
                                    'search_title'  'listens':2 'nobody':1
                                   'search_artist'  'bad':1 'religion':2
                                  'search_release'  'gray':2 'race':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 'gr':4 'grey':2 'punk':5 'rock':3
                                    'search_combo'  '00poprockelectronic':8 'bad':3B 'gr':11 'gray':6C 'grey':9 'listens':2A 'nobody':1A 'punk':12 'race':7C 'religion':4B 'rock':10 'the':5C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['political', 'punk rock', 'punk', 'alternative', 'rock']
                                        'tag_date'  1996
                                     'discogstags'  ['rock', 'punk']

============================== file details ==============================
                                           'mtime'  1622659258.541092  (2021-06-02 20:40:58)
                             'size'  2790836