======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '279'
                                          'artist'  'Sylvanum'
                                     'text_people'  ''
                                         'release'  'New IV'
                                           'title'  'Redden'
                                           '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-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['symphonic metal', 'female fronted metal', 'gothic metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '069'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '99.960'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'New IV'
'TBPM' (BPM (beats per minute))                     '99.960'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TIT2' (Title/songname/content description)         'Redden'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sylvanum'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '069'
'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'                                   ['symphonic metal', 'female fronted metal', 'gothic metal']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.08 dB'
'TXXX:replaygain_track_peak'                        '0.371794'

========================== row from database ==========================
                                              'id'  1391101
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Metal Compilation - New IV/069.Sylvanum - Redden.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  279
                                           'genre'  eid-metal
                                        'filesize'  11168829
                                           'mtime'  1620301282
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Metal Compilation 069.Sylvanum eid metal
                                      'tag_artist'  Sylvanum
                                     'tag_release'  New IV
                                       'tag_title'  Redden
                                             'bpm'  99.96
                                    'search_title'  'redden':1
                                   'search_artist'  'sylvanum':1
                                  'search_release'  'iv':2 'new':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '069':5 '069sylvanum':7 'compilation':4 'eid':8 'metal':3 'sylvanum':6
                                    'search_combo'  '00dwimp':5 '00metal':6 '069':9 '069sylvanum':11 'compilation':8 'eid':12 'iv':4C 'metal':7 'new':3C 'redden':1A 'sylvanum':2B,10
                                    'tag_tracknum'  69
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3']
                                      'lastfmtags'  ['symphonic metal', 'female fronted metal', 'gothic metal']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620301281.9925551  (2021-05-06 13:41:21)
                             'size'  11168829