======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '80'
                                          'artist'  'Robert Hermel'
                                     'text_people'  ''
                                         'release'  'Embargo'
                                           'title'  'Funebre'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['library music']"
                                     'discogstags'  "['jazz', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1968'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '133.9'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Hatembargo.blogspot.com'
'TALB' (Album/Movie/Show title)                     'Embargo'
'TBPM' (BPM (beats per minute))                     '133.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '1968'
'TENC' (Encoded by)                                 'Free Mp3 Wma Converter'
'TIT2' (Title/songname/content description)         'Funebre'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Robert Hermel'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'rock']
'TXXX:lastfmtags'                                   'library music'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.27 dB'
'TXXX:replaygain_track_peak'                        '0.357051'

========================== row from database ==========================
                                              'id'  1372051
                                            'path'  /data/Music/Bulk/00instruments-classical/Vladimir Cosma - sylvester music company - smcslp 510 - va - embargo/03 - Robert Hermel - Funebre.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  80
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  3242467
                                           'mtime'  1620561865
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Vladimir Cosma sylvester music company smcslp 510 va embargo 03 prerock classical or classical instruments
                                      'tag_artist'  Robert Hermel
                                     'tag_release'  Embargo
                                       'tag_title'  Funebre
                                             'bpm'  133.9
                                    'search_title'  'funebre':1
                                   'search_artist'  'hermel':2 'robert':1
                                  'search_release'  'embargo':1
                                     'search_rest'  '00instruments':1 '510':9 'classical':2 'company':7 'cosma':4 'embargo':11 'instruments':14 'music':6 'or':13 'prerock':12 'smcslp':8 'sylvester':5 'va':10 'vladimir':3
                                    'search_combo'  '00instruments':5 '510':13 'classical':6 'company':11 'cosma':8 'embargo':4C,15 'funebre':1A 'hermel':3B 'instruments':18 'music':10 'or':17 'prerock':16 'robert':2B 'smcslp':12 'sylvester':9 'va':14 'vladimir':7
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['library music']
                                        'tag_date'  1968
                                     'discogstags'  ['jazz', 'rock']

============================== file details ==============================
                                           'mtime'  1620561865.0418625  (2021-05-09 14:04:25)
                             'size'  3242467