======================== unified (from filesystem) ========================
                                         'bitrate'  '193.931'
                                        'duration'  '90'
                                          'artist'  'Simian Mobile Disco'
                                     'text_people'  ''
                                         'release'  'Mobile Disco'
                                           'title'  'Mr Tambourine Man (Accepella) : The Byrds'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'electronica', 'new rave', 'electro', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '19'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-we-electro'
                                             'bpm'  '129.896'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Mobile Disco'
'TBPM' (BPM (beats per minute))                     '129.896'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electro'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Mr Tambourine Man (Accepella) : The Byrds'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Simian Mobile Disco'
'TPE2' (Band/orchestra/accompaniment)               'Simian Mobile Disco'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '12/19'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:iTunes_CDDB_IDs'                              '19+B9614766423B3B9DB5CAA40CDE530987+1889534'
'TXXX:lastfmtags'                                   ['dance', 'electronica', 'new rave', 'electro', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.24 dB'
'TXXX:replaygain_track_peak'                        '0.528134'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1283813
                                            'path'  /data/Music/Bulk/00poprockelectronic/Simian Mobile Disco/[2002] Mobile Disco/12 Mr Tambourine Man (Accepella) _ The Byrds.mp3
                                         'working'  None
                                         'bitrate'  194
                                    'duration_sec'  90
                                           'genre'  electronic-we-electro
                                        'filesize'  2207805
                                           'mtime'  1621696590
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2002] 12 _ electronic we electro
                                      'tag_artist'  Simian Mobile Disco
                                     'tag_release'  Mobile Disco
                                       'tag_title'  Mr Tambourine Man (Accepella) : The Byrds
                                             'bpm'  129.896
                                    'search_title'  'accepella':4,5 'byrds':7 'man':3 'mr':1 'tambourine':2 'the':6
                                   'search_artist'  'disco':3 'mobile':2 'simian':1
                                  'search_release'  'disco':2 'mobile':1
                                     'search_rest'  '00poprockelectronic':1 '2002':2,3 'electro':6 'electronic':4 'we':5
                                    'search_combo'  '00poprockelectronic':13 '2002':14,15 'accepella':4A,5A 'byrds':7A 'disco':10B,12C 'electro':18 'electronic':16 'man':3A 'mobile':9B,11C 'mr':1A 'simian':8B 'tambourine':2A 'the':6A 'we':17
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'electronica', 'new rave', 'electro', 'electronic']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696590.1097686  (2021-05-22 17:16:30)
                             'size'  2207805