======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '824'
                                          'artist'  'Can'
                                     'text_people'  ''
                                         'release'  'Paris 12 May 1973'
                                           'title'  'Vitamin C'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'krautrock', 'progressive rock', 'psychedelic', 'experimental']"
                                     'discogstags'  "['krautrock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic;rock-cppex;set-pl-progspace'
                                             'bpm'  '127.6'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Paris 12 May 1973'
'TBPM' (BPM (beats per minute))                     '127.6'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic', 'rock-cppex', 'set-pl-progspace']
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Vitamin C'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Can'
'TPOS' (Part of a set)                              '2/2'
'TRCK' (Track number/Position in set)               '04'
'TSSE' (Software/Hardware and settings used for encoding)  'Lame3.99'
'TXXX:DISCID'                                       '100AC202'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['krautrock', 'rock']
'TXXX:lastfmtags'                                   ['german', 'krautrock', 'progressive rock', 'psychedelic', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.92 dB'
'TXXX:replaygain_track_peak'                        '0.599526'

========================== row from database ==========================
                                              'id'  1414956
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Can - Paris 12 May 1973/04. Vitamin C.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  824
                                           'genre'  rock-cppex-psychedelic;rock-cppex;set-pl-progspace
                                        'filesize'  33052724
                                           'mtime'  1635960183
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy 04. rock cppex psychedelic;rock cppex;set pl progspace
                                      'tag_artist'  Can
                                     'tag_release'  Paris 12 May 1973
                                       'tag_title'  Vitamin C
                                             'bpm'  127.6
                                    'search_title'  'c':2 'vitamin':1
                                   'search_artist'  'can':1
                                  'search_release'  '1973':3 'may':2 'paris':1
                                     'search_rest'  '04':2,3 'classicprogpsy':1 'cppex':5,10,12 'pl':14 'progspace':15 'psychedelic':6,8 'rock':4,7,9 'set':11,13
                                    'search_combo'  '04':8,9 '1973':6C 'c':2A 'can':3B 'classicprogpsy':7 'cppex':11,16,18 'may':5C 'paris':4C 'pl':20 'progspace':21 'psychedelic':12,14 'rock':10,13,15 'set':17,19 'vitamin':1A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['german', 'krautrock', 'progressive rock', 'psychedelic', 'experimental']
                                        'tag_date'  1973
                                     'discogstags'  ['krautrock', 'rock']

============================== file details ==============================
                                           'mtime'  1635960183.3694444  (2021-11-03 18:23:03)
                             'size'  33052724