======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '176'
                                          'artist'  'Sublime'
                                     'text_people'  ''
                                         'release'  'Stand by Your Van'
                                           'title'  'Greatest Hits'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-OLDST-2', 'Q-HHRNBTT-2', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'alternative', 'ska', 'punk', 'rock']"
                                     'discogstags'  "['progressive house', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-ska'
                                             'bpm'  '98.838'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Stand by Your Van'
'TBPM' (BPM (beats per minute))                     '98.838'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-ska'
'TIT2' (Title/songname/content description)         'Greatest Hits'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sublime'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['progressive house', 'electronic']
'TXXX:lastfmtags'                                   ['reggae', 'alternative', 'ska', 'punk', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.20 dB'
'TXXX:replaygain_track_peak'                        '0.595585'

========================== row from database ==========================
                                              'id'  720024
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Sublime - Stand By Your Van__cifsdc80.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  176
                                           'genre'  loc-style-reggae or dub or ska or dancehall-ska
                                        'filesize'  4232733
                                           'mtime'  1620524416
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism By Van__cifsdc80 loc style reggae or dub or ska or dancehall ska
                                      'tag_artist'  Sublime
                                     'tag_release'  Stand by Your Van
                                       'tag_title'  Greatest Hits
                                             'bpm'  98.838
                                    'search_title'  'greatest':1 'hits':2
                                   'search_artist'  'sublime':1
                                  'search_release'  'by':2 'stand':1 'van':4 'your':3
                                     'search_rest'  'by':5 'cifsdc80':7 'dancehall':14 'dub':12 'hiphop':1 'loc':8 'or':11 'rap':2 'reggae':10 'rnb':3 'ska':13 'style':9 'turntablism':4 'van':6
                                    'search_combo'  'by':5C,12 'cifsdc80':14 'dancehall':21 'dub':19 'greatest':1A 'hiphop':8 'hits':2A 'loc':15 'or':18 'rap':9 'reggae':17 'rnb':10 'ska':20 'stand':4C 'style':16 'sublime':3B 'turntablism':11 'van':7C,13 'your':6C
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'alternative', 'ska', 'punk', 'rock']
                                        'tag_date'  
                                     'discogstags'  ['progressive house', 'electronic']

============================== file details ==============================
                                           'mtime'  1620524416.4824295  (2021-05-09 03:40:16)
                             'size'  4232733