======================== unified (from filesystem) ========================
                                         'bitrate'  '217.843'
                                        'duration'  '243'
                                          'artist'  'Max Richter'
                                     'text_people'  ''
                                         'release'  'Memoryhouse'
                                           'title'  'Sarajevo'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'neoclassical', 'electronic', 'classical', "
 "'ambient']")
                                     'discogstags'  "['electronic', 'classical', 'modern classical', 'minimal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments;set-pl-sced;electronic'
                                             'bpm'  '132.704'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Memoryhouse'
'TBPM' (BPM (beats per minute))                     '132.704'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-classical or classical instruments', 'set-pl-sced', 'electronic']
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Sarajevo'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Max Richter'
'TPE2' (Band/orchestra/accompaniment)               'Max Richter'
'TRCK' (Track number/Position in set)               '05'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'classical', 'modern classical', 'minimal']
'TXXX:lastfmtags'                                   ['contemporary classical', 'neoclassical', 'electronic', 'classical', 'ambient']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.66 dB'
'TXXX:replaygain_track_peak'                        '0.861283'

========================== row from database ==========================
                                              'id'  1382433
                                            'path'  /data/Music/Bulk/00instruments-classical/Max Richter/[2002] Memoryhouse/05 Sarajevo.mp3
                                         'working'  None
                                         'bitrate'  217
                                    'duration_sec'  243
                                           'genre'  prerock-classical or classical instruments;set-pl-sced;electronic
                                        'filesize'  6682122
                                           'mtime'  1636913600
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical [2002] 05 prerock classical classical instruments;set pl sced;electronic
                                      'tag_artist'  Max Richter
                                     'tag_release'  Memoryhouse
                                       'tag_title'  Sarajevo
                                             'bpm'  132.704
                                    'search_title'  'sarajevo':1
                                   'search_artist'  'max':1 'richter':2
                                  'search_release'  'memoryhouse':1
                                     'search_rest'  '00instruments':1 '2002':3,4 'classical':2 'electronic':12,14 'instruments':6,8 'pl':10 'prerock':5 'sced':11,13 'set':7,9
                                    'search_combo'  '00instruments':5 '2002':7,8 'classical':6 'electronic':16,18 'instruments':10,12 'max':2B 'memoryhouse':4C 'pl':14 'prerock':9 'richter':3B 'sarajevo':1A 'sced':15,17 'set':11,13
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-4', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['contemporary classical', 'neoclassical', 'electronic', 'classical', 'ambient']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'classical', 'modern classical', 'minimal']

============================== file details ==============================
                                           'mtime'  1636913599.774819  (2021-11-14 19:13:19)
                             'size'  6682122