======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '317'
                                          'artist'  'Winehouse, Amy'
                                     'text_people'  'Amy Winehouse/Salaam Remi'
                                         'release'  'Frank'
                                           'title'  'In My Bed'
                                           '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-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['soul', 'jazz', 'female vocalists', 'british', 'amy winehouse']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '95.7'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'PRIV:WM/WMCollectionID:Ø_r]NY²A¦/ÒóáÏ\x90<'        PRIV(owner='WM/WMCollectionID', data=b'\xd8_r]NY\xb2A\xa6/\xd2\xf3\xe1\xcf\x90<')
'PRIV:WM/WMContentID:ÖÍÅ\x92¿L\x88K®\x16,\x1djcÝ\x90'  PRIV(owner='WM/WMContentID', data=b'\xd6\xcd\xc5\x92\xbfL\x88K\xae\x16,\x1djc\xdd\x90')
'TALB' (Album/Movie/Show title)                     'Frank'
'TBPM' (BPM (beats per minute))                     '95.7'
'TCOM' (Composer)                                   'Amy Winehouse/Salaam Remi'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'In My Bed'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Amy Winehouse'
'TPE2' (Band/orchestra/accompaniment)               'Winehouse, Amy'
'TPUB' (Publisher)                                  'Island'
'TRCK' (Track number/Position in set)               '8'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.71 dB'
'TXXX:replaygain_track_peak'                        '0.557823'

========================== row from database ==========================
                                              'id'  1256906
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Amy Winehouse/Amy Winehouse_/Back To Black/Amy Whinehouse - In My Bed.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  317
                                           'genre'  funk or soul
                                        'filesize'  6379265
                                           'mtime'  1628357709
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Winehouse_ Back To Black Whinehouse funk or soul
                                      'tag_artist'  Winehouse, Amy
                                     'tag_release'  Frank
                                       'tag_title'  In My Bed
                                             'bpm'  95.7
                                    'search_title'  'bed':3 'in':1 'my':2
                                   'search_artist'  'amy':3 'winehouse':1,2
                                  'search_release'  'frank':1
                                     'search_rest'  '00singer':1 'back':5 'black':7 'eos':3 'funk':9 'or':10 'songwriter':2 'soul':11 'to':6 'whinehouse':8 'winehouse':4
                                    'search_combo'  '00singer':8 'amy':6B 'back':12 'bed':3A 'black':14 'eos':10 'frank':7C 'funk':16 'in':1A 'my':2A 'or':17 'songwriter':9 'soul':18 'to':13 'whinehouse':15 'winehouse':4B,5B,11
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357709.4256685  (2021-08-07 19:35:09)
                             'size'  6379265