======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '306'
                                          'artist'  'The Rolling Stones'
                                     'text_people'  ''
                                         'release'  'Black And Blue (Remastered)'
                                           'title'  'Fool To Cry'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['blues', 'rock', '60s', 'british', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '137.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000C80 00000D10 000080E0 00004BF8 00027145 00027145 00008000 00007D36 '
 '000445C0 0003D0BE')
'MCDI' (Music CD identifier)                        MCDI(data=b'\x00J\x01\x08\x00\x10\x01\x00\x00\x00\x00\x00\x00\x10\x02\x00\x00\x00^D\x00\x10\x03\x00\x00\x00\xac\xe9\x00\x10\x04\x00\x00\x00\xf25\x00\x10\x05\x00\x00\x01p%\x00\x10\x06\x00\x00\x01\xc7\xf5\x00\x10\x07\x00\x00\x02.\x86\x00\x10\x08\x00\x00\x02\x88/\x00\x10\xaa\x00\x00\x02\xd8\xc7\xff\xff')
'TALB' (Album/Movie/Show title)                     'Black And Blue (Remastered)'
'TBPM' (BPM (beats per minute))                     '137.1'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Fool To Cry'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Rolling Stones'
'TRCK' (Track number/Position in set)               '07'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'rock', '60s', 'british', 'classic rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.89 dB'
'TXXX:replaygain_track_peak'                        '0.373253'

========================== row from database ==========================
                                              'id'  1351507
                                            'path'  /data/Music/Bulk/00poprockelectronic/Black And Blue (Remastered)/07 Fool To Cry.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  306
                                           'genre'  rock-cppex
                                        'filesize'  12432981
                                           'mtime'  1620737155
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 07 rock cppex
                                      'tag_artist'  The Rolling Stones
                                     'tag_release'  Black And Blue (Remastered)
                                       'tag_title'  Fool To Cry
                                             'bpm'  137.1
                                    'search_title'  'cry':3 'fool':1 'to':2
                                   'search_artist'  'rolling':2 'stones':3 'the':1
                                  'search_release'  'and':2 'black':1 'blue':3 'remastered':4,5
                                     'search_rest'  '00poprockelectronic':1 'cppex':3 'rock':2
                                    'search_combo'  '00poprockelectronic':12 'and':8C 'black':7C 'blue':9C 'cppex':14 'cry':3A 'fool':1A 'remastered':10C,11C 'rock':13 'rolling':5B 'stones':6B 'the':4B 'to':2A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'rock', '60s', 'british', 'classic rock']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737155.3937922  (2021-05-11 14:45:55)
                             'size'  12432981