======================== unified (from filesystem) ========================
                                         'bitrate'  '171.971'
                                        'duration'  '164'
                                          'artist'  'Wise Guys'
                                     'text_people'  ''
                                         'release'  'Radio'
                                           'title'  'Mad World'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['acapella', 'deutsch', 'german', 'a cappella', 'comedy', 'a capella']"
                                     'discogstags'  "['pop', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '18'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'set-cover or covered'
                                             'bpm'  '91.391'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000046E 0000042D 00004011'
'COMM:iTunNORM:eng'                                 (' 0000046E 0000042D 00004011 00003C36 0000AF54 0000AF54 00008000 00008000 '
 '0000C419 0000C430')
'TALB' (Album/Movie/Show title)                     'Radio'
'TBPM' (BPM (beats per minute))                     '91.391'
'TCON' (Content type, a.k.a. Genre)                 ['set-cover or covered', 'set-cover or covered']
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'LAME 3.90.3+mod'
'TIT2' (Title/songname/content description)         'Mad World'
'TKEY' (Initial key)                                '6B'
'TLAN' (Language(s))                                'German'
'TPE1' (Lead performer(s)/Soloist(s))               'Wise Guys'
'TRCK' (Track number/Position in set)               '18'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['pop', 'vocal']
'TXXX:lastfmtags'                                   ['acapella', 'deutsch', 'german', 'a cappella', 'comedy', 'a capella']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.16 dB'
'TXXX:replaygain_track_peak'                        '0.605986'

========================== row from database ==========================
                                              'id'  1319932
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/18_wise_guys_-_mad_world.mp3
                                         'working'  None
                                         'bitrate'  172
                                    'duration_sec'  164
                                           'genre'  set-cover or covered
                                        'filesize'  3538832
                                           'mtime'  1652397935
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 18_wise_guys_ _mad_world set cover covered
                                      'tag_artist'  Wise Guys
                                     'tag_release'  Radio
                                       'tag_title'  Mad World
                                             'bpm'  91.391
                                    'search_title'  'mad':1 'world':2
                                   'search_artist'  'guys':2 'wise':1
                                  'search_release'  'radio':1
                                     'search_rest'  '00poprockelectronic':1 '18':7 'cover':13 'covered':14 'files':5,6 'guys':9 'loose':3,4 'mad':10 'set':12 'unsorted':2 'wise':8 'world':11
                                    'search_combo'  '00poprockelectronic':6 '18':12 'cover':18 'covered':19 'files':10,11 'guys':4B,14 'loose':8,9 'mad':1A,15 'radio':5C 'set':17 'unsorted':7 'wise':3B,13 'world':2A,16
                                    'tag_tracknum'  18
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['acapella', 'deutsch', 'german', 'a cappella', 'comedy', 'a capella']
                                        'tag_date'  2006
                                     'discogstags'  ['pop', 'vocal']

============================== file details ==============================
                                           'mtime'  1652397934.7260296  (2022-05-13 01:25:34)
                             'size'  3538832