======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '261'
                                          'artist'  'Atlantic Starr'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I'll Remember"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-OLDST-3', 'Q-PLAY-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-3', 'q-other-2', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'rnb', 'quiet storm', 'soul', 'funk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '140.0'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '140.0'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1985'
'TIT2' (Title/songname/content description)         "I'll Remember"
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Atlantic Starr'
'TXXX:Mp3gain_minmax'                               '101,187'
'TXXX:Mp3gain_undo'                                 '+004,+004,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['80s', 'rnb', 'quiet storm', 'soul', 'funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.14 dB'
'TXXX:replaygain_track_peak'                        '0.587286'

========================== row from database ==========================
                                              'id'  1507211
                                            'path'  /data/Music/Bulk/00poprockelectronic/Atlantic Starr/Atlantic Starr - I_ll Remember.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  261
                                           'genre'  funk or soul
                                        'filesize'  4192013
                                           'mtime'  1628357926
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic I_ll funk or soul
                                      'tag_artist'  Atlantic Starr
                                     'tag_release'  None
                                       'tag_title'  I'll Remember
                                             'bpm'  140.0
                                    'search_title'  'i':1 'ill':3 'll':2 'remember':4
                                   'search_artist'  'atlantic':1 'starr':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'funk':4 'i':2 'll':3 'or':5 'soul':6
                                    'search_combo'  '00poprockelectronic':7 'atlantic':5B 'funk':10 'i':1A,8 'ill':3A 'll':2A,9 'or':11 'remember':4A 'soul':12 'starr':6B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'rnb', 'quiet storm', 'soul', 'funk']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357926.1499407  (2021-08-07 19:38:46)
                             'size'  4192013