======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '344'
                                          'artist'  'The Mars Volta'
                                     'text_people'  ''
                                         'release'  'De-Loused In the Comatorium'
                                           'title'  'Eriatarka'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative', 'progressive rock', 'progressive', 'experimental', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '101.666'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'De-Loused In the Comatorium'
'TBPM' (BPM (beats per minute))                     '101.666'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Eriatarka'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mars Volta'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative', 'progressive rock', 'progressive', 'experimental', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.45 dB'
'TXXX:replaygain_track_peak'                        '0.411542'

========================== row from database ==========================
                                              'id'  1412414
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/The Mars Volta/De-Loused in the Comatorium/The Mars Volta - Eriatarka - 03.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  344
                                           'genre'  rock-cppex-progressive
                                        'filesize'  8330328
                                           'mtime'  1620737767
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy in 03 rock cppex progressive
                                      'tag_artist'  The Mars Volta
                                     'tag_release'  De-Loused In the Comatorium
                                       'tag_title'  Eriatarka
                                             'bpm'  101.666
                                    'search_title'  'eriatarka':1
                                   'search_artist'  'mars':2 'the':1 'volta':3
                                  'search_release'  'comatorium':6 'de':1 'deloused':3 'in':4 'loused':2 'the':5
                                     'search_rest'  'classicprogpsy':1 'cppex':4 'in':2 'progressive':5 'rock':3
                                    'search_combo'  'classicprogpsy':11 'comatorium':10C 'cppex':14 'de':5C 'deloused':7C 'eriatarka':1A 'in':8C,12 'loused':6C 'mars':3B 'progressive':15 'rock':13 'the':2B,9C 'volta':4B
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'progressive rock', 'progressive', 'experimental', 'rock']
                                        'tag_date'  2003
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737766.589087  (2021-05-11 14:56:06)
                             'size'  8330328