======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '203'
                                          'artist'  'UB40'
                                     'text_people'  ''
                                         'release'  'The Best Of'
                                           'title'  "Maybe Tomorrow '87"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-LOCALNESS-3', "
 "'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-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'reggae', 'ska', 'british', 'pop']"
                                     'discogstags'  "['reggae-pop', 'reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-pop'
                                             'bpm'  '96.346'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Best Of'
'TBPM' (BPM (beats per minute))                     '96.346'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-pop'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         "Maybe Tomorrow '87"
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'UB40'
'TRCK' (Track number/Position in set)               '16'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['reggae-pop', 'reggae']
'TXXX:lastfmtags'                                   ['80s', 'reggae', 'ska', 'british', 'pop']
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.28 dB'
'TXXX:replaygain_track_peak'                        '0.677559'

========================== row from database ==========================
                                              'id'  1503947
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/Ub40/MBZ;#Ub40;#The Best Of;#16;#Maybe Tomorrow _87.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  203
                                           'genre'  loc-style-reggae or dub or ska or dancehall-pop
                                        'filesize'  3251704
                                           'mtime'  1620522580
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub Ub40 MBZ;#Ub40;#The Of;#16;#Maybe _87 loc style reggae dub ska dancehall pop
                                      'tag_artist'  UB40
                                     'tag_release'  The Best Of
                                       'tag_title'  Maybe Tomorrow '87
                                             'bpm'  96.346
                                    'search_title'  '87':3,4 'maybe':1 'tomorrow':2
                                   'search_artist'  'ub40':1
                                  'search_release'  'best':2 'of':3 'the':1
                                     'search_rest'  '00reggae':1 '16':11,14 '87':16 'dancehall':21 'dub':2 'loc':17 'maybe':12,15 'mbz':4,7 'of':10,13 'pop':22 'reggae':19 'ska':20 'style':18 'the':6,9 'ub40':3,5,8
                                    'search_combo'  '00reggae':9 '16':19,22 '87':3A,4A,24 'best':7C 'dancehall':29 'dub':10 'loc':25 'maybe':1A,20,23 'mbz':12,15 'of':8C,18,21 'pop':30 'reggae':27 'ska':28 'style':26 'the':6C,14,17 'tomorrow':2A 'ub40':5B,11,13,16
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'reggae', 'ska', 'british', 'pop']
                                        'tag_date'  1987
                                     'discogstags'  ['reggae-pop', 'reggae']

============================== file details ==============================
                                           'mtime'  1620522579.6845047  (2021-05-09 03:09:39)
                             'size'  3251704