======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '350'
                                          'artist'  'Cirque du soleil'
                                     'text_people'  ''
                                         'release'  'Cirque du soleil'
                                           'title'  'allegria'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['new age', 'circus', 'soundtrack', 'ambient', 'world']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '112.1'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Cirque du soleil'
'TBPM' (BPM (beats per minute))                     '112.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'allegria'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cirque du soleil'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['new age', 'circus', 'soundtrack', 'ambient', 'world']
'TXXX:original release date'                        ['2002', '1987']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.10 dB'
'TXXX:replaygain_track_peak'                        '0.619496'

========================== row from database ==========================
                                              'id'  1213869
                                            'path'  /data/Music/Bulk/00instruments-classical/Cirque du soleil/cirque_du_soleil-allegria.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  350
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  5613786
                                           'mtime'  1620561493
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical cirque_du_soleil prerock classical or classical instruments
                                      'tag_artist'  Cirque du soleil
                                     'tag_release'  Cirque du soleil
                                       'tag_title'  allegria
                                             'bpm'  112.1
                                    'search_title'  'allegria':1
                                   'search_artist'  'cirque':1 'du':2 'soleil':3
                                  'search_release'  'cirque':1 'du':2 'soleil':3
                                     'search_rest'  '00instruments':1 'cirque':3 'classical':2 'du':4 'instruments':8 'or':7 'prerock':6 'soleil':5
                                    'search_combo'  '00instruments':8 'allegria':1A 'cirque':2B,5C,10 'classical':9 'du':3B,6C,11 'instruments':15 'or':14 'prerock':13 'soleil':4B,7C,12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['new age', 'circus', 'soundtrack', 'ambient', 'world']
                                        'tag_date'  1987
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561492.8302007  (2021-05-09 13:58:12)
                             'size'  5613786