======================== unified (from filesystem) ========================
                                         'bitrate'  '219.545'
                                        'duration'  '306'
                                          'artist'  'Prodigy'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Voodoo People (Pendulum Remix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['rave', 'electronic', 'hip hop', 'big beat', 'rap']"
                                     'discogstags'  "['hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '115.589'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '115.589'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Voodoo People (Pendulum Remix)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Prodigy'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'hip hop'
'TXXX:lastfmtags'                                   ['rave', 'electronic', 'hip hop', 'big beat', 'rap']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.49 dB'
'TXXX:replaygain_track_peak'                        '0.595641'

========================== row from database ==========================
                                              'id'  1308285
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/Prodigy/01. Voodoo People (Pendulum Remix).mp3
                                         'working'  None
                                         'bitrate'  220
                                    'duration_sec'  306
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  8409342
                                           'mtime'  1642081843
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb 01. electronic th breakbeat or dnb or jungle
                                      'tag_artist'  Prodigy
                                     'tag_release'  None
                                       'tag_title'  Voodoo People (Pendulum Remix)
                                             'bpm'  115.589
                                    'search_title'  'pendulum':3,4 'people':2 'remix':5,6 'voodoo':1
                                   'search_artist'  'prodigy':1
                                  'search_release'  
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 '01':3,4 'breakbeat':7 'dnb':9 'electronic':5 'jungle':10 'or':8 'th':6
                                    'search_combo'  '00dnb':9 '00poprockelectronic':8 '01':10,11 'breakbeat':14 'dnb':16 'electronic':12 'jungle':17 'or':15 'pendulum':3A,4A 'people':2A 'prodigy':7B 'remix':5A,6A 'th':13 'voodoo':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', 'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']
                                      'lastfmtags'  ['rave', 'electronic', 'hip hop', 'big beat', 'rap']
                                        'tag_date'  2005
                                     'discogstags'  ['hip hop']

============================== file details ==============================
                                           'mtime'  1642081843.142266  (2022-01-13 14:50:43)
                             'size'  8409342