======================== unified (from filesystem) ========================
                                         'bitrate'  '272.938'
                                        'duration'  '306'
                                          'artist'  'London Elektricity'
                                     'text_people'  ''
                                         'release'  'Power Ballads'
                                           'title'  'The Mustard Song'
                                           'quals'  ("['Q-HAP-3', '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-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['drum and bass', 'dnb', 'electronic', 'drum n bass', 'liquid funk']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-th-breakbeat or dnb or jungle'
                                             'bpm'  '86.548'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Power Ballads'
'TBPM' (BPM (beats per minute))                     '86.548'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-breakbeat or dnb or jungle'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'The Mustard Song'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'London Elektricity'
'TRCK' (Track number/Position in set)               '8'
'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'                                   ['drum and bass', 'dnb', 'electronic', 'drum n bass', 'liquid funk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.14 dB'
'TXXX:replaygain_track_peak'                        '0.475049'

========================== row from database ==========================
                                              'id'  1296034
                                            'path'  /data/Music/Bulk/00poprockelectronic/00dnb/London Elektricity/Power Ballads-08-The Mustard Song.mp3
                                         'working'  None
                                         'bitrate'  272
                                    'duration_sec'  306
                                           'genre'  electronic-th-breakbeat or dnb or jungle
                                        'filesize'  10461056
                                           'mtime'  1621696580
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00dnb 08 electronic th breakbeat or dnb or jungle
                                      'tag_artist'  London Elektricity
                                     'tag_release'  Power Ballads
                                       'tag_title'  The Mustard Song
                                             'bpm'  86.548
                                    'search_title'  'mustard':2 'song':3 'the':1
                                   'search_artist'  'elektricity':2 'london':1
                                  'search_release'  'ballads':2 'power':1
                                     'search_rest'  '00dnb':2 '00poprockelectronic':1 'breakbeat':5 'dnb':7 'electronic':3 'jungle':8 'or':6 'th':4
                                    'search_combo'  '00dnb':9 '00poprockelectronic':8 'ballads':7C 'breakbeat':12 'dnb':14 'electronic':10 'elektricity':5B 'jungle':15 'london':4B 'mustard':2A 'or':13 'power':6C 'song':3A 'th':11 'the':1A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['drum and bass', 'dnb', 'electronic', 'drum n bass', 'liquid funk']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696579.5486138  (2021-05-22 17:16:19)
                             'size'  10461056