======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '141'
                                          'artist'  'The Eagles'
                                     'text_people'  ''
                                         'release'  'The Avengers & Other Top Sixties TV Themes - D1'
                                           'title'  'Maigret Theme'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']")
                                      'lastfmtags'  "['classic rock', 'rock', '70s', 'soft rock', 'eagles']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '24'
                                      'tracktotal'  ''
                                            'date'  '1962'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '145.371'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Avengers & Other Top Sixties TV Themes - D1'
'TBPM' (BPM (beats per minute))                     '145.371'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '1962'
'TIT2' (Title/songname/content description)         'Maigret Theme'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Eagles'
'TRCK' (Track number/Position in set)               '24'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', 'rock', '70s', 'soft rock', 'eagles']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+4.37 dB'
'TXXX:replaygain_track_peak'                        '0.236711'

========================== row from database ==========================
                                              'id'  786050
                                            'path'  /data/Music/Bulk/0soundtrack/Sixties TV Themes/24 Maigret Theme.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  141
                                           'genre'  soundtrack-video
                                        'filesize'  3401563
                                           'mtime'  1620334233
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 24 soundtrack video
                                      'tag_artist'  The Eagles
                                     'tag_release'  The Avengers & Other Top Sixties TV Themes - D1
                                       'tag_title'  Maigret Theme
                                             'bpm'  145.371
                                    'search_title'  'maigret':1 'theme':2
                                   'search_artist'  'eagles':2 'the':1
                                  'search_release'  'avengers':2 'd1':8 'other':3 'sixties':5 'the':1 'themes':7 'top':4 'tv':6
                                     'search_rest'  '0soundtrack':1 '24':2 'soundtrack':3 'video':4
                                    'search_combo'  '0soundtrack':13 '24':14 'avengers':6C 'd1':12C 'eagles':4B 'maigret':1A 'other':7C 'sixties':9C 'soundtrack':15 'the':3B,5C 'theme':2A 'themes':11C 'top':8C 'tv':10C 'video':16
                                    'tag_tracknum'  24
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'rock', '70s', 'soft rock', 'eagles']
                                        'tag_date'  1962
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620334233.257044  (2021-05-06 22:50:33)
                             'size'  3401563