======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '111'
                                          'artist'  'Aion'
                                     'text_people'  ''
                                         'release'  'Aionism'
                                           'title'  'Peter-3'
                                           'quals'  ("['Q-LOCALNESS-2', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['8 of 10 stars', 'polish', 'thrash metal', 'metal', 'gothic metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1991'
                                        'comments'  ''
                                           'genre'  'eid-metal-trash;loc-asia-japan'
                                             'bpm'  '113.8'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Aionism'
'TBPM' (BPM (beats per minute))                     '113.8'
'TCON' (Content type, a.k.a. Genre)                 ['eid-metal-trash', 'loc-asia-japan']
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'Peter-3'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Aion'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['8 of 10 stars', 'polish', 'thrash metal', 'metal', 'gothic metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.391158'

========================== row from database ==========================
                                              'id'  1394230
                                            'path'  /data/Music/Bulk/00dwimp/00metal/1991 Aionism/06. Peter-3.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  111
                                           'genre'  eid-metal-trash;loc-asia-japan
                                        'filesize'  1785697
                                           'mtime'  1620311475
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 1991 06. eid metal trash;loc asia japan
                                      'tag_artist'  Aion
                                     'tag_release'  Aionism
                                       'tag_title'  Peter-3
                                             'bpm'  113.8
                                    'search_title'  '3':2 'peter':1 'peter3':3
                                   'search_artist'  'aion':1
                                  'search_release'  'aionism':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '06':4,5 '1991':3 'asia':12 'eid':6 'japan':13 'loc':9,11 'metal':7 'trash':8,10
                                    'search_combo'  '00dwimp':6 '00metal':7 '06':9,10 '1991':8 '3':2A 'aion':4B 'aionism':5C 'asia':17 'eid':11 'japan':18 'loc':14,16 'metal':12 'peter':1A 'peter3':3A 'trash':13,15
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['8 of 10 stars', 'polish', 'thrash metal', 'metal', 'gothic metal']
                                        'tag_date'  1991
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620311475.2991056  (2021-05-06 16:31:15)
                             'size'  1785697