======================== unified (from filesystem) ========================
                                         'bitrate'  '232.072'
                                        'duration'  '473'
                                          'artist'  'Black Strobe'
                                     'text_people'  ''
                                         'release'  'Innerstrings'
                                           'title'  'Innerstrings (original mix)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-4', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electroclash', 'electro', 'electronic', 'french', 'techno']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-we-electroclash'
                                             'bpm'  '128.170'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Innerstrings'
'TBPM' (BPM (beats per minute))                     '128.170'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electroclash'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Innerstrings (original mix)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Black Strobe'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electroclash', 'electro', 'electronic', 'french', 'techno']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.54 dB'
'TXXX:replaygain_track_peak'                        '0.373677'

========================== row from database ==========================
                                              'id'  1320285
                                            'path'  /data/Music/Bulk/00poprockelectronic/Black Strobe/02. Innerstrings (Original Mix).mp3
                                         'working'  None
                                         'bitrate'  232
                                    'duration_sec'  473
                                           'genre'  electronic-we-electroclash
                                        'filesize'  13742213
                                           'mtime'  1620567853
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 02. (Original Mix) electronic we electroclash
                                      'tag_artist'  Black Strobe
                                     'tag_release'  Innerstrings
                                       'tag_title'  Innerstrings (original mix)
                                             'bpm'  128.17
                                    'search_title'  'innerstrings':1 'mix':4,5 'original':2,3
                                   'search_artist'  'black':1 'strobe':2
                                  'search_release'  'innerstrings':1
                                     'search_rest'  '00poprockelectronic':1 '02':2,3 'electroclash':10 'electronic':8 'mix':6,7 'original':4,5 'we':9
                                    'search_combo'  '00poprockelectronic':9 '02':10,11 'black':6B 'electroclash':18 'electronic':16 'innerstrings':1A,8C 'mix':4A,5A,14,15 'original':2A,3A,12,13 'strobe':7B 'we':17
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electroclash', 'electro', 'electronic', 'french', 'techno']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620567852.7892075  (2021-05-09 15:44:12)
                             'size'  13742213