======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '245'
                                          'artist'  'The Beatles'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Beatles - Lucy In The Sky With'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'rock', '60s', 'british', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '92.055'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '92.055'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Beatles - Lucy In The Sky With'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Beatles'
'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'                                   ['pop', 'rock', '60s', 'british', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.03 dB'
'TXXX:replaygain_track_peak'                        '0.517104'

========================== row from database ==========================
                                              'id'  1305148
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/The Beatles/cifsbd23.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  245
                                           'genre'  rock-cppex
                                        'filesize'  5888573
                                           'mtime'  1678463469
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock cifsbd23 rock cppex
                                      'tag_artist'  The Beatles
                                     'tag_release'  None
                                       'tag_title'  Beatles - Lucy In The Sky With
                                             'bpm'  92.055
                                    'search_title'  'beatles':1 'in':3 'lucy':2 'sky':5 'the':4 'with':6
                                   'search_artist'  'beatles':2 'the':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'cifsbd23':4 'cppex':6 'indierock':3 'poprock':2 'rock':5
                                    'search_combo'  '00poprockelectronic':9 'beatles':1A,8B 'cifsbd23':12 'cppex':14 'in':3A 'indierock':11 'lucy':2A 'poprock':10 'rock':13 'sky':5A 'the':4A,7B 'with':6A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']
                                      'lastfmtags'  ['pop', 'rock', '60s', 'british', 'classic rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678463468.7289977  (2023-03-10 16:51:08)
                             'size'  5888573