======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '428'
                                          'artist'  'Derek And The Dominos'
                                     'text_people'  ''
                                         'release'  'Layla'
                                           'title'  'Layla'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['eric clapton', 'blues rock', '70s', 'rock', 'blues', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '114.934'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Layla'
'TBPM' (BPM (beats per minute))                     '114.934'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Layla'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Derek And The Dominos'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['eric clapton', 'blues rock', '70s', 'rock', 'blues', 'classic rock']
'TXXX:q-bass'                                       '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.11 dB'
'TXXX:replaygain_track_peak'                        '0.615529'

========================== row from database ==========================
                                              'id'  1296624
                                            'path'  /data/Music/Bulk/00poprockelectronic/Derek And The Dominos/Derek And The Dominos__Layla__13 - Layla.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  428
                                           'genre'  rock-cppex
                                        'filesize'  6850173
                                           'mtime'  1620737185
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Dominos__Layla__13 rock cppex
                                      'tag_artist'  Derek And The Dominos
                                     'tag_release'  Layla
                                       'tag_title'  Layla
                                             'bpm'  114.934
                                    'search_title'  'layla':1
                                   'search_artist'  'and':2 'derek':1 'dominos':4 'the':3
                                  'search_release'  'layla':1
                                     'search_rest'  '00poprockelectronic':1 '13':4 'cppex':6 'dominos':2 'layla':3 'rock':5
                                    'search_combo'  '00poprockelectronic':7 '13':10 'and':3B 'cppex':12 'derek':2B 'dominos':5B,8 'layla':1A,6C,9 'rock':11 'the':4B
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['eric clapton', 'blues rock', '70s', 'rock', 'blues', 'classic rock']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737185.2110393  (2021-05-11 14:46:25)
                             'size'  6850173