======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '205'
                                          'artist'  'Skinny Puppy'
                                     'text_people'  ''
                                         'release'  'Bites and Remission'
                                           'title'  'Glass Out'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['ebm', 'industrial', 'electronic', 'experimental', 'industrial rock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '113.453'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bites and Remission'
'TBPM' (BPM (beats per minute))                     '113.453'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'Glass Out'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Skinny Puppy'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['ebm', 'industrial', 'electronic', 'experimental', 'industrial rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.33 dB'
'TXXX:replaygain_track_peak'                        '0.766418'

========================== row from database ==========================
                                              'id'  1391589
                                            'path'  /data/Music/Bulk/00dwimp/00ebm-industrial-darkwave-goth/Skinny Puppy/Bites & Remission/07. Glass Out.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  205
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  4929015
                                           'mtime'  1620296060
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00ebm industrial darkwave goth & 07. eid ebm or industrial or darkwave
                                      'tag_artist'  Skinny Puppy
                                     'tag_release'  Bites and Remission
                                       'tag_title'  Glass Out
                                             'bpm'  113.453
                                    'search_title'  'glass':1 'out':2
                                   'search_artist'  'puppy':2 'skinny':1
                                  'search_release'  'and':2 'bites':1 'remission':3
                                     'search_rest'  '00dwimp':1 '00ebm':2 '07':6,7 'darkwave':4 'ebm':9 'eid':8 'goth':5 'industrial':3 'or':10
                                    'search_combo'  '00dwimp':8 '00ebm':9 '07':13,14 'and':6C 'bites':5C 'darkwave':11 'ebm':16 'eid':15 'glass':1A 'goth':12 'industrial':10 'or':17 'out':2A 'puppy':4B 'remission':7C 'skinny':3B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['ebm', 'industrial', 'electronic', 'experimental', 'industrial rock']
                                        'tag_date'  1987
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620296059.7151093  (2021-05-06 12:14:19)
                             'size'  4929015