======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '411'
                                          'artist'  'The Moody Blues'
                                     'text_people'  ''
                                         'release'  'Greatest Hits'
                                           'title'  'The Other Side Of Life'
                                           '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-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rock', 'progressive rock', 'psychedelic', '60s', 'classic rock']"
                                     'discogstags'  "['rock', 'psychedelic rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '92.6'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '92.6'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'The Other Side Of Life'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '411977'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Moody Blues'
'TRCK' (Track number/Position in set)               '9'
'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', 'psychedelic rock', 'prog rock']
'TXXX:lastfmtags'                                   ['rock', 'progressive rock', 'psychedelic', '60s', 'classic rock']
'TXXX:original release date'                        ['1989', '1989']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.98 dB'
'TXXX:replaygain_track_peak'                        '0.878486'

========================== row from database ==========================
                                              'id'  1287493
                                            'path'  /data/Music/Bulk/00poprockelectronic/Moody Blues/Moody Blues - The Other Side of Life.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  411
                                           'genre'  rock-cppex-classic
                                        'filesize'  6594448
                                           'mtime'  1636039309
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic of rock cppex classic
                                      'tag_artist'  The Moody Blues
                                     'tag_release'  Greatest Hits
                                       'tag_title'  The Other Side Of Life
                                             'bpm'  92.6
                                    'search_title'  'life':5 'of':4 'other':2 'side':3 'the':1
                                   'search_artist'  'blues':3 'moody':2 'the':1
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '00poprockelectronic':1 'classic':5 'cppex':4 'of':2 'rock':3
                                    'search_combo'  '00poprockelectronic':11 'blues':8B 'classic':15 'cppex':14 'greatest':9C 'hits':10C 'life':5A 'moody':7B 'of':4A,12 'other':2A 'rock':13 'side':3A 'the':1A,6B
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  9A
                                           '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-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'progressive rock', 'psychedelic', '60s', 'classic rock']
                                        'tag_date'  1989
                                     'discogstags'  ['rock', 'psychedelic rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1636039308.6370804  (2021-11-04 16:21:48)
                             'size'  6594448