======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '298'
                                          'artist'  'Holy Knights'
                                     'text_people'  ''
                                         'release'  'New IV'
                                           'title'  'Resolution (Japan Bonu Track)'
                                           '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-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['power metal', 'symphonic metal', 'symphonic power metal', 'epic metal', "
 "'italian']")
                                     'discogstags'  "['rock', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'eid-metal-power'
                                             'bpm'  '133.933'
                                             'key'  '9A'
                                        '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))                     '133.933'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-power'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'Resolution (Japan Bonu Track)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Holy Knights'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '09'
'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:discogstags'                                  ['rock', 'heavy metal']
'TXXX:lastfmtags'                                   ['power metal',
 'symphonic metal',
 'symphonic power metal',
 'epic metal',
 'italian']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'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'                        '-1.70 dB'
'TXXX:replaygain_track_peak'                        '0.313941'

========================== row from database ==========================
                                              'id'  1401237
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Metal Compilation - New IV/051.Holy Knights - Resolution (Japan Bonu Track).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  298
                                           'genre'  eid-metal-power
                                        'filesize'  11952829
                                           'mtime'  1620310844
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Metal Compilation 051.Holy eid metal power
                                      'tag_artist'  Holy Knights
                                     'tag_release'  New IV
                                       'tag_title'  Resolution (Japan Bonu Track)
                                             'bpm'  133.933
                                    'search_title'  'bonu':4 'japan':2,3 'resolution':1 'track':5,6
                                   'search_artist'  'holy':1 'knights':2
                                  'search_release'  'iv':2 'new':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '051':5 '051holy':7 'compilation':4 'eid':8 'holy':6 'metal':3 'power':9
                                    'search_combo'  '00dwimp':11 '00metal':12 '051':15 '051holy':17 'bonu':4A 'compilation':14 'eid':18 'holy':7B,16 'iv':10C 'japan':2A,3A 'knights':8B 'metal':13 'new':9C 'power':19 'resolution':1A 'track':5A,6A
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['power metal', 'symphonic metal', 'symphonic power metal', 'epic metal', 'italian']
                                        'tag_date'  2012
                                     'discogstags'  ['rock', 'heavy metal']

============================== file details ==============================
                                           'mtime'  1620310843.6324282  (2021-05-06 16:20:43)
                             'size'  11952829