======================== unified (from filesystem) ========================
                                         'bitrate'  '179.941'
                                        'duration'  '275'
                                          'artist'  'Joe Cocker'
                                     'text_people'  ''
                                         'release'  'The Very Best Of'
                                           'title'  "Don't le me be misunderstood"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['blues rock', 'blues', 'rock', 'soul', 'classic rock']"
                                     'discogstags'  "['rock', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '16'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-blues'
                                             'bpm'  '137.385'
                                             '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))                     '137.385'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-blues'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         "Don't le me be misunderstood"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Joe Cocker'
'TRCK' (Track number/Position in set)               '16/16'
'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'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.04 dB'
'TXXX:replaygain_track_peak'                        '0.597210'

========================== row from database ==========================
                                              'id'  1521440
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Joe Cocker/The Very Best Of/Joe Cocker - 16 - Don_t le me be misunderstood.mp3
                                         'working'  None
                                         'bitrate'  179
                                    'duration_sec'  275
                                           'genre'  rock-pop-early-blues
                                        'filesize'  6198304
                                           'mtime'  1620736714
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 16 Don_t rock pop early blues
                                      'tag_artist'  Joe Cocker
                                     'tag_release'  The Very Best Of
                                       'tag_title'  Don't le me be misunderstood
                                             'bpm'  137.385
                                    'search_title'  'be':6 'don':1 'dont':3 'le':4 'me':5 'misunderstood':7 't':2
                                   'search_artist'  'cocker':2 'joe':1
                                  'search_release'  'best':3 'of':4 'the':1 'very':2
                                     'search_rest'  'blues':7 'classicprogpsy':1 'don':2 'early':6 'pop':5 'rock':4 't':3
                                    'search_combo'  'be':6A 'best':12C 'blues':20 'classicprogpsy':14 'cocker':9B 'don':1A,15 'dont':3A 'early':19 'joe':8B 'le':4A 'me':5A 'misunderstood':7A 'of':13C 'pop':18 'rock':17 't':2A,16 'the':10C 'very':11C
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'blues', 'rock', 'soul', 'classic rock']
                                        'tag_date'  1989
                                     'discogstags'  ['rock', 'pop']

============================== file details ==============================
                                           'mtime'  1620736713.599425  (2021-05-11 14:38:33)
                             'size'  6198304