======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '268'
                                          'artist'  'Peter Pan Speedrock'
                                     'text_people'  ''
                                         'release'  'Spread Eagle'
                                           'title'  'Red Wings'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock n roll', 'rock', 'hard rock', 'dutch', 'speedrock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-gr-speed'
                                             'bpm'  '141.118'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Spread Eagle'
'TBPM' (BPM (beats per minute))                     '141.118'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-speed'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Red Wings'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Peter Pan Speedrock'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '2'
'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'                                   ['rock n roll', 'rock', 'hard rock', 'dutch', 'speedrock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.33 dB'
'TXXX:replaygain_track_peak'                        '0.276819'

========================== row from database ==========================
                                              'id'  1491556
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Spread Eagle/10 - Red Wings.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  268
                                           'genre'  rock-gr-speed
                                        'filesize'  6434816
                                           'mtime'  1636917502
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch 10 gr speed
                                      'tag_artist'  Peter Pan Speedrock
                                     'tag_release'  Spread Eagle
                                       'tag_title'  Red Wings
                                             'bpm'  141.118
                                    'search_title'  'red':1 'wings':2
                                   'search_artist'  'pan':2 'peter':1 'speedrock':3
                                  'search_release'  'eagle':2 'spread':1
                                     'search_rest'  '00dutch':4 '00mid':1 'europe':3 'gr':5 'north':2 'speed':6
                                    'search_combo'  '00dutch':11 '00mid':8 'eagle':7C 'europe':10 'gr':12 'north':9 'pan':4B 'peter':3B 'red':1A 'speed':13 'speedrock':5B 'spread':6C 'wings':2A
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock n roll', 'rock', 'hard rock', 'dutch', 'speedrock']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636917501.6037683  (2021-11-14 20:18:21)
                             'size'  6434816