======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '153'
                                          'artist'  'The Skatalites'
                                     'text_people'  ''
                                         'release'  'Diversen'
                                           'title'  'Malcolm X'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['jamaican', 'reggae', 'dub', 'ska', 'rocksteady']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '23'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '132.2'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Diversen'
'TBPM' (BPM (beats per minute))                     '132.2'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-ska'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Malcolm X'
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '154122'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Skatalites'
'TRCK' (Track number/Position in set)               '23'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'reggae'
'TXXX:lastfmtags'                                   ['jamaican', 'reggae', 'dub', 'ska', 'rocksteady']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.17 dB'
'TXXX:replaygain_track_peak'                        '0.370516'

========================== row from database ==========================
                                              'id'  1331148
                                            'path'  /data/Music/Bulk/00poprockelectronic/Skatalites/Div/23 - The Skatalites - Malcolm X.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  153
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  1849344
                                           'mtime'  1620524854
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 23 loc style reggae or dub or ska or dancehall ska
                                      'tag_artist'  The Skatalites
                                     'tag_release'  Diversen
                                       'tag_title'  Malcolm X
                                             'bpm'  132.2
                                    'search_title'  'malcolm':1 'x':2
                                   'search_artist'  'skatalites':2 'the':1
                                  'search_release'  'diversen':1
                                     'search_rest'  '00poprockelectronic':1 '23':2 'dancehall':9 'dub':7 'loc':3 'or':6 'reggae':5 'ska':8 'style':4
                                    'search_combo'  '00poprockelectronic':6 '23':7 'dancehall':14 'diversen':5C 'dub':12 'loc':8 'malcolm':1A 'or':11 'reggae':10 'ska':13 'skatalites':4B 'style':9 'the':3B 'x':2A
                                    'tag_tracknum'  23
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jamaican', 'reggae', 'dub', 'ska', 'rocksteady']
                                        'tag_date'  1995
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1620524853.7690902  (2021-05-09 03:47:33)
                             'size'  1849344