======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '50'
                                          'artist'  'Esbjörn Svensson Trio'
                                     'text_people'  ''
                                         'release'  'Seven days of falling'
                                           'title'  'Evening in Atlantis'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-1', 'q-mixbeat-1', "
 "'Q-PIANO-4']")
                                      'lastfmtags'  ("['swedish', 'jazz piano', 'jazz', 'contemporary jazz', 'instrumental', "
 "'piano']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '129.730'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000021 00000029 000000A8'
'COMM:iTunNORM:eng'                                 (' 00000021 00000029 000000A8 000000C1 00009F16 00009F16 00001394 000015C3 '
 '00009F16 00009F16')
'PRIV:AverageLevel:p\x05\x00\x00'                   PRIV(owner='AverageLevel', data=b'p\x05\x00\x00')
'PRIV:PeakValue:øG\x00\x00'                         PRIV(owner='PeakValue', data=b'\xf8G\x00\x00')
'TALB' (Album/Movie/Show title)                     'Seven days of falling'
'TBPM' (BPM (beats per minute))                     '129.730'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Evening in Atlantis'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '50886'
'TPE1' (Lead performer(s)/Soloist(s))               'Esbjörn Svensson Trio'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['swedish', 'jazz piano', 'jazz', 'contemporary jazz', 'instrumental', 'piano']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.45 dB'
'TXXX:replaygain_track_peak'                        '0.795203'

========================== row from database ==========================
                                              'id'  779648
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Esbjörn Svensson Trio/Seven days of falling/04 - Evening in Atlantis.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  50
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  1223325
                                           'mtime'  1620573985
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 04 prerock classical or classical instruments
                                      'tag_artist'  Esbjörn Svensson Trio
                                     'tag_release'  Seven days of falling
                                       'tag_title'  Evening in Atlantis
                                             'bpm'  129.73
                                    'search_title'  'atlantis':3 'evening':1 'in':2
                                   'search_artist'  'esbjorn':1,2 'svensson':3 'trio':4
                                  'search_release'  'days':2 'falling':4 'of':3 'seven':1
                                     'search_rest'  'classical':6 'country':4 'exotica':2 'instruments':8 'jazz':1 'oldies':3 'or':7 'prerock':5
                                    'search_combo'  'atlantis':3A 'classical':17 'country':15 'days':9C 'esbjorn':4B,5B 'evening':1A 'exotica':13 'falling':11C 'in':2A 'instruments':19 'jazz':12 'of':10C 'oldies':14 'or':18 'prerock':16 'seven':8C 'svensson':6B 'trio':7B
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'jazz piano', 'jazz', 'contemporary jazz', 'instrumental', 'piano']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573985.1702833  (2021-05-09 17:26:25)
                             'size'  1223325