======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '242'
                                          'artist'  'Secret Chiefs 3'
                                     'text_people'  ''
                                         'release'  'secet chiefs 3'
                                           'title'  'White As They Come'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  ("['instrumental', 'experimental rock', 'avant garde', 'experimental', "
 "'electronic']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-cppex-experimental or noise'
                                             'bpm'  '124.698'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'secet chiefs 3'
'TBPM' (BPM (beats per minute))                     '124.698'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-experimental or noise'
'TIT2' (Title/songname/content description)         'White As They Come'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Secret Chiefs 3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['instrumental',
 'experimental rock',
 'avant garde',
 'experimental',
 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.12 dB'
'TXXX:replaygain_track_peak'                        '0.591606'

========================== row from database ==========================
                                              'id'  1305900
                                            'path'  /data/Music/Bulk/00poprockelectronic/Secret Chiefs 3/Secret Chiefs 3 - White As They Come.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  242
                                           'genre'  rock-cppex-experimental or noise
                                        'filesize'  3401600
                                           'mtime'  1620736075
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic rock cppex experimental or noise
                                      'tag_artist'  Secret Chiefs 3
                                     'tag_release'  secet chiefs 3
                                       'tag_title'  White As They Come
                                             'bpm'  124.698
                                    'search_title'  'as':2 'come':4 'they':3 'white':1
                                   'search_artist'  '3':3 'chiefs':2 'secret':1
                                  'search_release'  '3':3 'chiefs':2 'secet':1
                                     'search_rest'  '00poprockelectronic':1 'cppex':3 'experimental':4 'noise':6 'or':5 'rock':2
                                    'search_combo'  '00poprockelectronic':11 '3':7B,10C 'as':2A 'chiefs':6B,9C 'come':4A 'cppex':13 'experimental':14 'noise':16 'or':15 'rock':12 'secet':8C 'secret':5B 'they':3A 'white':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'experimental rock', 'avant garde', 'experimental', 'electronic']
                                        'tag_date'  
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736075.368729  (2021-05-11 14:27:55)
                             'size'  3401600