======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '137'
                                          'artist'  'The Skatalites'
                                     'text_people'  ''
                                         'release'  'Diversen'
                                           'title'  'River To The Bank'
                                           '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-2', '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'  '13'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '128.6'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Diversen'
'TBPM' (BPM (beats per minute))                     '128.6'
'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)         'River To The Bank'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Skatalites'
'TRCK' (Track number/Position in set)               '13'
'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'                                      '2'
'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'                        '+2.31 dB'
'TXXX:replaygain_track_peak'                        '0.508010'

========================== row from database ==========================
                                              'id'  1322411
                                            'path'  /data/Music/Bulk/00poprockelectronic/Skatalites/Div/13 - The Skatalites - River To The Bank.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  137
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  2204755
                                           'mtime'  1620524842
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 13 loc style reggae or dub or ska or dancehall ska
                                      'tag_artist'  The Skatalites
                                     'tag_release'  Diversen
                                       'tag_title'  River To The Bank
                                             'bpm'  128.6
                                    'search_title'  'bank':4 'river':1 'the':3 'to':2
                                   'search_artist'  'skatalites':2 'the':1
                                  'search_release'  'diversen':1
                                     'search_rest'  '00poprockelectronic':1 'dancehall':8 'dub':6 'loc':2 'or':5 'reggae':4 'ska':7 'style':3
                                    'search_combo'  '00poprockelectronic':8 'bank':4A 'dancehall':15 'diversen':7C 'dub':13 'loc':9 'or':12 'reggae':11 'river':1A 'ska':14 'skatalites':6B 'style':10 'the':3A,5B 'to':2A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  8B
                                           '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-2', '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'  1620524841.6895173  (2021-05-09 03:47:21)
                             'size'  2204755