======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '277'
                                          'artist'  'Mark Morrison'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Return Of The Mack (1997)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-JZFKS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['90s', 'dance', 'rnb', 'soul', 'pop', 'hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  ('electronic-generic or radio-unsorted;hip hop or rnb or rap or '
 'turntablism;set-pl-billboard')
                                             'bpm'  '95.438'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '95.438'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted',
 'hip hop or rnb or rap or turntablism',
 'set-pl-billboard']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Return Of The Mack (1997)'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mark Morrison'
'TRCK' (Track number/Position in set)               '0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['90s', 'dance', 'rnb', 'soul', 'pop', 'hip hop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.75 dB'
'TXXX:replaygain_track_peak'                        '0.464879'
'TXXX:tracknum'                                     '099'

========================== row from database ==========================
                                              'id'  1347641
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/099 - Mark Morrison - Return Of The Mack (1997).mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  277
                                           'genre'  electronic-generic or radio-unsorted;hip hop or rnb or rap or turntablism;set-pl-billboard
                                        'filesize'  3891131
                                           'mtime'  1620533313
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 099 electronic generic radio unsorted;hip hop rnb rap turntablism;set pl billboard
                                      'tag_artist'  Mark Morrison
                                     'tag_release'  None
                                       'tag_title'  Return Of The Mack (1997)
                                             'bpm'  95.438
                                    'search_title'  '1997':5,6 'mack':4 'of':2 'return':1 'the':3
                                   'search_artist'  'mark':1 'morrison':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '90s':2 'billboard':18 'electronic':3 'generic':4 'hip':7,9 'hop':10 'pl':17 'radio':5 'rap':12 'rnb':11 'set':14,16 'turntablism':13,15 'unsorted':6,8
                                    'search_combo'  '00poprockelectronic':9 '1997':5A,6A '90s':10 'billboard':26 'electronic':11 'generic':12 'hip':15,17 'hop':18 'mack':4A 'mark':7B 'morrison':8B 'of':2A 'pl':25 'radio':13 'rap':20 'return':1A 'rnb':19 'set':22,24 'the':3A 'turntablism':21,23 'unsorted':14,16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['90s', 'dance', 'rnb', 'soul', 'pop', 'hip hop']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533312.6503506  (2021-05-09 06:08:32)
                             'size'  3891131