======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '219'
                                          'artist'  'The Stranded'
                                     'text_people'  ''
                                         'release'  'New IV'
                                           'title'  'Blood Like Gasoline'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['melodic death metal', 'modern melodic death metal', 'modern metal', "
 "'italian', 'metal']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'eid-metal-melodic'
                                             'bpm'  '136.001'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'New IV'
'TBPM' (BPM (beats per minute))                     '136.001'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-melodic'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'Blood Like Gasoline'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Stranded'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '01'
'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'                                   ['melodic death metal',
 'modern melodic death metal',
 'modern metal',
 'italian',
 'metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.30 dB'
'TXXX:replaygain_track_peak'                        '0.398251'

========================== row from database ==========================
                                              'id'  1390893
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Metal Compilation - New IV/024.The Stranded - Blood Like Gasoline.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  219
                                           'genre'  eid-metal-melodic
                                        'filesize'  5269964
                                           'mtime'  1620310850
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Metal Compilation 024.The eid metal melodic
                                      'tag_artist'  The Stranded
                                     'tag_release'  New IV
                                       'tag_title'  Blood Like Gasoline
                                             'bpm'  136.001
                                    'search_title'  'blood':1 'gasoline':3 'like':2
                                   'search_artist'  'stranded':2 'the':1
                                  'search_release'  'iv':2 'new':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '024':5 '024the':7 'compilation':4 'eid':8 'melodic':9 'metal':3 'the':6
                                    'search_combo'  '00dwimp':8 '00metal':9 '024':12 '024the':14 'blood':1A 'compilation':11 'eid':15 'gasoline':3A 'iv':7C 'like':2A 'melodic':16 'metal':10 'new':6C 'stranded':5B 'the':4B,13
                                    'tag_tracknum'  1
                                      '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-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['melodic death metal', 'modern melodic death metal', 'modern metal', 'italian', 'metal']
                                        'tag_date'  2012
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620310849.567101  (2021-05-06 16:20:49)
                             'size'  5269964