======================== unified (from filesystem) ========================
                                         'bitrate'  '194.841'
                                        'duration'  '185'
                                          'artist'  'Ian Carey'
                                     'text_people'  ''
                                         'release'  'Dance Mania 2009'
                                           'title'  'Red Light'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', "
 "'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-3', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['house', 'dance', 'electronic', 'electro house', 'funky house']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '128.008'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000B41 00000B8A 00004A35'
'COMM:iTunNORM:eng'                                 (' 00000B41 00000B8A 00004A35 00004B63 000042F0 000042F0 00008000 00008000 '
 '0000957A 0000F858')
'TALB' (Album/Movie/Show title)                     'Dance Mania 2009'
'TBPM' (BPM (beats per minute))                     '128.008'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Red Light'
'TKEY' (Initial key)                                '8A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Ian Carey'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['house', 'dance', 'electronic', 'electro house', 'funky house']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.43 dB'
'TXXX:replaygain_track_peak'                        '0.537947'

========================== row from database ==========================
                                              'id'  1352928
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/top, dance, club, best of, etc/112-ian_carey-red_light357.mp3
                                         'working'  None
                                         'bitrate'  194
                                    'duration_sec'  185
                                           'genre'  electronic-unsorted
                                        'filesize'  4525451
                                           'mtime'  1621696834
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted top, dance, club, best of, etc 112 ian_carey red_light357 electronic unsorted
                                      'tag_artist'  Ian Carey
                                     'tag_release'  Dance Mania 2009
                                       'tag_title'  Red Light
                                             'bpm'  128.008
                                    'search_title'  'light':2 'red':1
                                   'search_artist'  'carey':2 'ian':1
                                  'search_release'  '2009':3 'dance':1 'mania':2
                                     'search_rest'  '00poprockelectronic':1 '112':13 'best':9 'carey':15 'club':7,8 'dance':5,6 'electronic':18 'etc':12 'ian':14 'light357':17 'of':10,11 'red':16 'top':3,4 'unsorted':2
                                    'search_combo'  '00poprockelectronic':8 '112':20 '2009':7C 'best':16 'carey':4B,22 'club':14,15 'dance':5C,12,13 'electronic':25 'etc':19 'ian':3B,21 'light':2A 'light357':24 'mania':6C 'of':17,18 'red':1A,23 'top':10,11 'unsorted':9
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['house', 'dance', 'electronic', 'electro house', 'funky house']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696834.4034436  (2021-05-22 17:20:34)
                             'size'  4525451