======================== unified (from filesystem) ========================
                                         'bitrate'  '178.489'
                                        'duration'  '157'
                                          'artist'  'Joe Cocker'
                                     'text_people'  ''
                                         'release'  'The Very Best Of'
                                           'title'  'Marjorine'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['blues rock', 'blues', 'rock', 'soul', 'classic rock']"
                                     'discogstags'  "['rock', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '16'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-blues'
                                             'bpm'  '123.935'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             'D80EA910'
'COMM:ID3v1 Comment:XXX'                            'D80EA910'
'TALB' (Album/Movie/Show title)                     'The Very Best Of'
'TBPM' (BPM (beats per minute))                     '123.935'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-blues'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Marjorine'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Joe Cocker'
'TRCK' (Track number/Position in set)               '3/16'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, VBR 3, Stereo, High quality'
'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']
'TXXX:lastfmtags'                                   ['blues rock', 'blues', 'rock', 'soul', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.23 dB'
'TXXX:replaygain_track_peak'                        '0.509275'

========================== row from database ==========================
                                              'id'  1421491
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Joe Cocker/Joe Cocker_/The Very Best Of/Joe Cocker - Marjorine.mp3
                                         'working'  None
                                         'bitrate'  178
                                    'duration_sec'  157
                                           'genre'  rock-pop-early-blues
                                        'filesize'  3514556
                                           'mtime'  1620736700
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Cocker_ rock pop early blues
                                      'tag_artist'  Joe Cocker
                                     'tag_release'  The Very Best Of
                                       'tag_title'  Marjorine
                                             'bpm'  123.935
                                    'search_title'  'marjorine':1
                                   'search_artist'  'cocker':2 'joe':1
                                  'search_release'  'best':3 'of':4 'the':1 'very':2
                                     'search_rest'  'blues':6 'classicprogpsy':1 'cocker':2 'early':5 'pop':4 'rock':3
                                    'search_combo'  'best':6C 'blues':13 'classicprogpsy':8 'cocker':3B,9 'early':12 'joe':2B 'marjorine':1A 'of':7C 'pop':11 'rock':10 'the':4C 'very':5C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'blues', 'rock', 'soul', 'classic rock']
                                        'tag_date'  1989
                                     'discogstags'  ['rock', 'pop']

============================== file details ==============================
                                           'mtime'  1620736699.6575766  (2021-05-11 14:38:19)
                             'size'  3514556