<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '236'
                                          'artist'  'Winehouse, Amy'
                                     'text_people'  ''
                                         'release'  'Back To Black'
                                           'title'  'Stronger Than Me'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'Q-JZFKS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', 'jazz', 'female vocalists', 'british', 'amy winehouse']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '91.4'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f95382f14c0>

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''<br/>                                     <img style="width:150px" src="image?fid=1276607"/>
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Back To Black'
'TBPM' (BPM (beats per minute))                     '91.4'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         'Stronger Than Me'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Amy Winehouse'
'TPE2' (Band/orchestra/accompaniment)               'Winehouse, Amy'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'jazz', 'female vocalists', 'british', 'amy winehouse']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.07 dB'
'TXXX:replaygain_track_peak'                        '0.546122'

========================== row from database ==========================
                                              'id'  1276607
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Amy Winehouse/Amy Winehouse_/Back To Black/Amy Whinehouse - Stronger Than Me.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  236
                                           'genre'  funk or soul
                                        'filesize'  3843692
                                           'mtime'  1628357710
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Winehouse_ Whinehouse funk or soul
                                      'tag_artist'  Winehouse, Amy
                                     'tag_release'  Back To Black
                                       'tag_title'  Stronger Than Me
                                             'bpm'  91.4
                                    'search_title'  'me':3 'stronger':1 'than':2
                                   'search_artist'  'amy':3 'winehouse':1,2
                                  'search_release'  'back':1 'black':3 'to':2
                                     'search_rest'  '00singer':1 'eos':3 'funk':6 'or':7 'songwriter':2 'soul':8 'whinehouse':5 'winehouse':4
                                    'search_combo'  '00singer':10 'amy':6B 'back':7C 'black':9C 'eos':12 'funk':15 'me':3A 'or':16 'songwriter':11 'soul':17 'stronger':1A 'than':2A 'to':8C 'whinehouse':14 'winehouse':4B,5B,13
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'jazz', 'female vocalists', 'british', 'amy winehouse']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357710.168837  (2021-08-07 19:35:10)
                             'size'  3843692