======================== unified (from filesystem) ========================
                                         'bitrate'  '165.357'
                                        'duration'  '202'
                                          'artist'  'Mask of Virtue'
                                     'text_people'  ''
                                         'release'  'New IV'
                                           'title'  'Is It Really Worth It'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['electronic', 'modern metal', 'elecnronic', 'alternative metal', 'alt. "
 "metal']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '13'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'eid-metal'
                                             'bpm'  '141.809'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'New IV'
'TBPM' (BPM (beats per minute))                     '141.809'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal'
'TDRC' (Recording time)                             '2012'
'TIT2' (Title/songname/content description)         'Is It Really Worth It'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mask of Virtue'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '6/13'
'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'                                   ['electronic', 'modern metal', 'elecnronic', 'alternative metal', 'alt. metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '-2.75 dB'
'TXXX:replaygain_track_peak'                        '0.472837'

========================== row from database ==========================
                                              'id'  1396858
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Metal Compilation - New IV/035.Mask of Virtue - Is It Really Worth It.mp3
                                         'working'  None
                                         'bitrate'  165
                                    'duration_sec'  202
                                           'genre'  eid-metal
                                        'filesize'  4179840
                                           'mtime'  1620301250
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Metal Compilation 035.Mask eid metal
                                      'tag_artist'  Mask of Virtue
                                     'tag_release'  New IV
                                       'tag_title'  Is It Really Worth It
                                             'bpm'  141.809
                                    'search_title'  'is':1 'it':2 'really':3 'worth':4
                                   'search_artist'  'mask':1 'of':2 'virtue':3
                                  'search_release'  'iv':2 'new':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '035':5 '035mask':7 'compilation':4 'eid':8 'mask':6 'metal':3
                                    'search_combo'  '00dwimp':10 '00metal':11 '035':14 '035mask':16 'compilation':13 'eid':17 'is':1A 'it':2A 'iv':9C 'mask':5B,15 'metal':12 'new':8C 'of':6B 'really':3A 'virtue':7B 'worth':4A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10A
                                           '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['electronic', 'modern metal', 'elecnronic', 'alternative metal', 'alt. metal']
                                        'tag_date'  2012
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620301250.1238587  (2021-05-06 13:40:50)
                             'size'  4179840