======================== unified (from filesystem) ========================
                                         'bitrate'  '320.007'
                                        'duration'  '287'
                                          'artist'  'Supertramp'
                                     'text_people'  ''
                                         'release'  'The Autobiography Of Supertramp'
                                           'title'  'Cannonball'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-PLAY-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'Q-PIANO-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'progressive rock', 'pop', '70s', 'classic rock']"
                                     'discogstags'  "['rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '127.044'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Autobiography Of Supertramp'
'TBPM' (BPM (beats per minute))                     '127.044'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'Cannonball'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Supertramp'
'TPE2' (Band/orchestra/accompaniment)               'Supertramp'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop rock']
'TXXX:lastfmtags'                                   ['rock', 'progressive rock', 'pop', '70s', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.10 dB'
'TXXX:replaygain_track_peak'                        '0.671157'

========================== row from database ==========================
                                              'id'  1283766
                                            'path'  /data/Music/Bulk/00poprockelectronic/1985 complete/160 Supertramp - Cannonball.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  287
                                           'genre'  rock-cppex
                                        'filesize'  11508421
                                           'mtime'  1620736988
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1985 complete 160 rock cppex
                                      'tag_artist'  Supertramp
                                     'tag_release'  The Autobiography Of Supertramp
                                       'tag_title'  Cannonball
                                             'bpm'  127.044
                                    'search_title'  'cannonball':1
                                   'search_artist'  'supertramp':1
                                  'search_release'  'autobiography':2 'of':3 'supertramp':4 'the':1
                                     'search_rest'  '00poprockelectronic':1 '160':4 '1985':2 'complete':3 'cppex':6 'rock':5
                                    'search_combo'  '00poprockelectronic':7 '160':10 '1985':8 'autobiography':4C 'cannonball':1A 'complete':9 'cppex':12 'of':5C 'rock':11 'supertramp':2B,6C 'the':3C
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-PLAY-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'progressive rock', 'pop', '70s', 'classic rock']
                                        'tag_date'  1985
                                     'discogstags'  ['rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1620736987.8430514  (2021-05-11 14:43:07)
                             'size'  11508421