======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '201'
                                          'artist'  'wayne wonder'
                                     'text_people'  ''
                                         'release'  'Top 40'
                                           'title'  'no letting go-wk29-woei'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-2', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['reggae', 'dancehall', 'rnb', 'jamaican', 'jamaica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance;set-pl-billboard'
                                             'bpm'  '100.207'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Top 40'
'TBPM' (BPM (beats per minute))                     '100.207'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-dance', 'set-pl-billboard']
'TIT2' (Title/songname/content description)         'no letting go-wk29-woei'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'wayne wonder'
'TXXX:Mp3gain_minmax'                               '095,205'
'TXXX:Mp3gain_undo'                                 '+005,+005,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '03'
'TXXX:lastfmtags'                                   ['reggae', 'dancehall', 'rnb', 'jamaican', 'jamaica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-2.58 dB'
'TXXX:replaygain_track_peak'                        '0.475175'

========================== row from database ==========================
                                              'id'  1408686
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Top 40/03-wayne_wonder_-_no_letting_go-wk29-woei.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  201
                                           'genre'  electronic-generic or radio-dance;set-pl-billboard
                                        'filesize'  4851871
                                           'mtime'  1621695902
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 03 wayne_wonder_ _no_letting_go electronic generic or radio dance;set pl billboard
                                      'tag_artist'  wayne wonder
                                     'tag_release'  Top 40
                                       'tag_title'  no letting go-wk29-woei
                                             'bpm'  100.207
                                    'search_title'  'go':3 'gowk29woei':6 'letting':2 'no':1 'wk29':4 'woei':5
                                   'search_artist'  'wayne':1 'wonder':2
                                  'search_release'  '40':2 'top':1
                                     'search_rest'  '00poprockelectronic':1 'billboard':18 'dance':3,13,15 'electronic':10 'generic':2 'go':9 'letting':8 'no':7 'or':11 'pl':17 'radio':12 'set':14,16 'trapbeat':4 'wayne':5 'wonder':6
                                    'search_combo'  '00poprockelectronic':11 '40':10C 'billboard':28 'dance':13,23,25 'electronic':20 'generic':12 'go':3A,19 'gowk29woei':6A 'letting':2A,18 'no':1A,17 'or':21 'pl':27 'radio':22 'set':24,26 'top':9C 'trapbeat':14 'wayne':7B,15 'wk29':4A 'woei':5A 'wonder':8B,16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'dancehall', 'rnb', 'jamaican', 'jamaica']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621695901.6242983  (2021-05-22 17:05:01)
                             'size'  4851871