======================== unified (from filesystem) ========================
                                         'bitrate'  '210.222'
                                        'duration'  '933'
                                          'artist'  'Archive'
                                     'text_people'  ''
                                         'release'  'You All Look The Same To Me'
                                           'title'  'Finding It So Hard'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['electronic', 'alternative', 'rock', 'trip hop', 'progressive rock']"
                                     'discogstags'  "['electronic', 'trip hop', 'downtempo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '102.7'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'You All Look The Same To Me'
'TBPM' (BPM (beats per minute))                     '102.7'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Finding It So Hard'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Archive'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'trip hop', 'downtempo']
'TXXX:lastfmtags'                                   ['electronic', 'alternative', 'rock', 'trip hop', 'progressive rock']
'TXXX:original release date'                        ['2002', '2002']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.97 dB'
'TXXX:replaygain_track_peak'                        '0.518858'

========================== row from database ==========================
                                              'id'  765414
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Elektronikzeugs/Archive - Finding It So Hard.mp3
                                         'working'  None
                                         'bitrate'  210
                                    'duration_sec'  933
                                           'genre'  electronic-unsorted
                                        'filesize'  24527721
                                           'mtime'  1620536589
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Elektronikzeugs electronic unsorted
                                      'tag_artist'  Archive
                                     'tag_release'  You All Look The Same To Me
                                       'tag_title'  Finding It So Hard
                                             'bpm'  102.7
                                    'search_title'  'finding':1 'hard':4 'it':2 'so':3
                                   'search_artist'  'archive':1
                                  'search_release'  'all':2 'look':3 'me':7 'same':5 'the':4 'to':6 'you':1
                                     'search_rest'  'electronic':2 'elektronikzeugs':1 'unsorted':3
                                    'search_combo'  'all':7C 'archive':5B 'electronic':14 'elektronikzeugs':13 'finding':1A 'hard':4A 'it':2A 'look':8C 'me':12C 'same':10C 'so':3A 'the':9C 'to':11C 'unsorted':15 'you':6C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'alternative', 'rock', 'trip hop', 'progressive rock']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic', 'trip hop', 'downtempo']

============================== file details ==============================
                                           'mtime'  1620536588.9070249  (2021-05-09 07:03:08)
                             'size'  24527721