======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '504'
                                          'artist'  'Max Cooper'
                                     'text_people'  ''
                                         'release'  'Symphonica'
                                           'title'  'The End Of Reason'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['minimal techno', 'techno', 'electronic', 'tech house', 'minimal']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '5'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '125.860'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:http://www.cdtag.com:\x01\x01@Kl\x00'         PRIV(owner='http://www.cdtag.com', data=b'\x01\x01@Kl\x00')
'TALB' (Album/Movie/Show title)                     'Symphonica'
'TBPM' (BPM (beats per minute))                     '125.860'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2009-06-02'
'TIT2' (Title/songname/content description)         'The End Of Reason'
'TKEY' (Initial key)                                '8B'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Max Cooper'
'TPE2' (Band/orchestra/accompaniment)               'Max Cooper'
'TPUB' (Publisher)                                  'Traum Schallplatten'
'TRCK' (Track number/Position in set)               '3/5'
'TSSE' (Software/Hardware and settings used for encoding)  'WEB'
'TXXX:Catalog #'                                    'TRAUMV112'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Release type'                                 'Normal release'
'TXXX:Rip date'                                     '2009-06-02'
'TXXX:Ripping tool'                                 'EAC'
'TXXX:Source'                                       'Web'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['minimal techno', 'techno', 'electronic', 'tech house', 'minimal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.48 dB'
'TXXX:replaygain_track_peak'                        '0.431310'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://www.junodownload.com/ppps/products/1428407-02.htm')

========================== row from database ==========================
                                              'id'  1283339
                                            'path'  /data/Music/Bulk/00poprockelectronic/max cooper/Symphonica/03 - The End Of Reason.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  504
                                           'genre'  electronic-th-techno
                                        'filesize'  20178053
                                           'mtime'  1620573816
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic max cooper 03 electronic th techno
                                      'tag_artist'  Max Cooper
                                     'tag_release'  Symphonica
                                       'tag_title'  The End Of Reason
                                             'bpm'  125.86
                                    'search_title'  'end':2 'of':3 'reason':4 'the':1
                                   'search_artist'  'cooper':2 'max':1
                                  'search_release'  'symphonica':1
                                     'search_rest'  '00poprockelectronic':1 'cooper':3 'electronic':4 'max':2 'techno':6 'th':5
                                    'search_combo'  '00poprockelectronic':8 'cooper':6B,10 'electronic':11 'end':2A 'max':5B,9 'of':3A 'reason':4A 'symphonica':7C 'techno':13 'th':12 'the':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['minimal techno', 'techno', 'electronic', 'tech house', 'minimal']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620573816.3281126  (2021-05-09 17:23:36)
                             'size'  20178053