======================== unified (from filesystem) ========================
                                         'bitrate'  '271.107'
                                        'duration'  '212'
                                          'artist'  'Electric Light Orchestra'
                                     'text_people'  ''
                                         'release'  'A New World Record'
                                           'title'  "Livin' Thing"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'progressive rock', 'british', '70s', 'classic rock']"
                                     'discogstags'  "['rock', 'pop', 'prog rock', 'symphonic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  '15'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '122.585'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'A New World Record'
'TBPM' (BPM (beats per minute))                     '122.585'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         "Livin' Thing"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Electric Light Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Electric Light Orchestra'
'TPOS' (Part of a set)                              '6/11'
'TRCK' (Track number/Position in set)               '06/15'
'TXXX:Description'                                  'The Classic Albums Collection'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop', 'prog rock', 'symphonic rock']
'TXXX:lastfmtags'                                   ['rock', 'progressive rock', 'british', '70s', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.72 dB'
'TXXX:replaygain_track_peak'                        '0.438292'

========================== row from database ==========================
                                              'id'  1520964
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Electric Light Orchestra - A New World Record/06. Livin_ Thing.mp3
                                         'working'  None
                                         'bitrate'  271
                                    'duration_sec'  212
                                           'genre'  rock-cppex-classic
                                        'filesize'  7199028
                                           'mtime'  1636039012
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock 06. Livin_ rock cppex classic
                                      'tag_artist'  Electric Light Orchestra
                                     'tag_release'  A New World Record
                                       'tag_title'  Livin' Thing
                                             'bpm'  122.585
                                    'search_title'  'livin':1,2 'thing':3
                                   'search_artist'  'electric':1 'light':2 'orchestra':3
                                  'search_release'  'a':1 'new':2 'record':4 'world':3
                                     'search_rest'  '00poprockelectronic':1 '06':4,5 'classic':9 'cppex':8 'indierock':3 'livin':6 'poprock':2 'rock':7
                                    'search_combo'  '00poprockelectronic':11 '06':14,15 'a':7C 'classic':19 'cppex':18 'electric':4B 'indierock':13 'light':5B 'livin':1A,2A,16 'new':8C 'orchestra':6B 'poprock':12 'record':10C 'rock':17 'thing':3A 'world':9C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'progressive rock', 'british', '70s', 'classic rock']
                                        'tag_date'  2006
                                     'discogstags'  ['rock', 'pop', 'prog rock', 'symphonic rock']

============================== file details ==============================
                                           'mtime'  1636039011.8193848  (2021-11-04 16:16:51)
                             'size'  7199028