======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '240'
                                          'artist'  'Within Temptation'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Running up that Hill Single'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['metal', 'gothic', 'female fronted metal', 'symphonic metal', 'gothic metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'eid-goth or gothrock-gothrock'
                                             'bpm'  '106.141'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '106.141'
'TCON' (Content type, a.k.a. Genre)                 'eid-goth or gothrock-gothrock'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Running up that Hill Single'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Within Temptation'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['metal', 'gothic', 'female fronted metal', 'symphonic metal', 'gothic metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.87 dB'
'TXXX:replaygain_track_peak'                        '0.403960'

========================== row from database ==========================
                                              'id'  1495658
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Within Temptation - Running up that hill (1).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  240
                                           'genre'  eid-goth or gothrock-gothrock
                                        'filesize'  5785805
                                           'mtime'  1620301244
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat hill (1) eid goth or gothrock gothrock
                                      'tag_artist'  Within Temptation
                                     'tag_release'  None
                                       'tag_title'  Running up that Hill Single
                                             'bpm'  106.141
                                    'search_title'  'hill':4 'running':1 'single':5 'that':3 'up':2
                                   'search_artist'  'temptation':2 'within':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1':6,7 'dance':3 'eid':8 'generic':2 'goth':9 'gothrock':11 'hill':5 'or':10 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':8 '1':13,14 'dance':10 'eid':15 'generic':9 'goth':16 'gothrock':18 'hill':4A,12 'or':17 'running':1A 'single':5A 'temptation':7B 'that':3A 'trapbeat':11 'up':2A 'within':6B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['metal', 'gothic', 'female fronted metal', 'symphonic metal', 'gothic metal']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620301244.4294336  (2021-05-06 13:40:44)
                             'size'  5785805