======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '218'
                                          'artist'  'Billy Joel'
                                     'text_people'  ''
                                         'release'  'Sounds of the 80s'
                                           'title'  'The Longest Time'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['rock', 'singer songwriter', 'piano', 'pop', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '84.280'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Sounds of the 80s'
'TBPM' (BPM (beats per minute))                     '84.280'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         'The Longest Time'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Joel'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'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:lastfmtags'                                   ['rock', 'singer songwriter', 'piano', 'pop', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.58 dB'
'TXXX:replaygain_track_peak'                        '0.903783'

========================== row from database ==========================
                                              'id'  1532129
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Sounds Of The 80s (480 songs)/Billy Joel - The Longest Time.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  218
                                           'genre'  rock-cppex-classic
                                        'filesize'  3504357
                                           'mtime'  1636039006
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Of (480 songs) rock cppex classic
                                      'tag_artist'  Billy Joel
                                     'tag_release'  Sounds of the 80s
                                       'tag_title'  The Longest Time
                                             'bpm'  84.28
                                    'search_title'  'longest':2 'the':1 'time':3
                                   'search_artist'  'billy':1 'joel':2
                                  'search_release'  '80s':4 'of':2 'sounds':1 'the':3
                                     'search_rest'  '00poprockelectronic':1 '480':6,7 'classic':12 'cppex':11 'dance':3 'generic':2 'of':5 'rock':10 'songs':8,9 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':10 '480':15,16 '80s':9C 'billy':4B 'classic':21 'cppex':20 'dance':12 'generic':11 'joel':5B 'longest':2A 'of':7C,14 'rock':19 'songs':17,18 'sounds':6C 'the':1A,8C 'time':3A 'trapbeat':13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'singer songwriter', 'piano', 'pop', 'classic rock']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636039006.310568  (2021-11-04 16:16:46)
                             'size'  3504357