======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '237'
                                          'artist'  'Helmet'
                                     'text_people'  'Page Hamilton'
                                         'release'  "Unsung-The Best Of Helmet ('91 - '97)"
                                           'title'  'Unsung'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['alternative metal', 'metal', 'post hardcore', 'rock', 'hardcore', "
 "'alternative']")
                                     'discogstags'  "['electronic', 'techno', 'acid', 'tech house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '106.085'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/WMCollectionID:}a¬bÛ~jE¤Ì-\x08æôèV'        PRIV(owner='WM/WMCollectionID', data=b'}a\xacb\xdb~jE\xa4\xcc-\x08\xe6\xf4\xe8V')
'PRIV:WM/WMContentID:Â\x0b\x182\x0bÑ6B®H¤\x0c\x0cí\x12j'  PRIV(owner='WM/WMContentID', data=b'\xc2\x0b\x182\x0b\xd16B\xaeH\xa4\x0c\x0c\xed\x12j')
'TALB' (Album/Movie/Show title)                     "Unsung-The Best Of Helmet ('91 - '97)"
'TBPM' (BPM (beats per minute))                     '106.085'
'TCOM' (Composer)                                   'Page Hamilton'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Unsung'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Helmet'
'TPE2' (Band/orchestra/accompaniment)               'Helmet'
'TPUB' (Publisher)                                  'Interscope'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'techno', 'acid', 'tech house']
'TXXX:lastfmtags'                                   ['alternative metal',
 'metal',
 'post hardcore',
 'rock',
 'hardcore',
 'alternative']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.359617'

========================== row from database ==========================
                                              'id'  1507048
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/Helmet - Unsung-The Best Of Helmet (_91 - _97) - 08 - Unsung.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  237
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  9499136
                                           'mtime'  1620566862
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s (_91 _97) 08 electronic generic or radio unsorted
                                      'tag_artist'  Helmet
                                     'tag_release'  Unsung-The Best Of Helmet ('91 - '97)
                                       'tag_title'  Unsung
                                             'bpm'  106.085
                                    'search_title'  'unsung':1
                                   'search_artist'  'helmet':1
                                  'search_release'  '91':7,8 '97':9,10 'best':4 'helmet':6 'of':5 'the':2 'unsung':1 'unsungthe':3
                                     'search_rest'  '00poprockelectronic':1 '90s':2 '91':3,4 '97':5,6 'electronic':7 'generic':8 'or':9 'radio':10 'unsorted':11
                                    'search_combo'  '00poprockelectronic':13 '90s':14 '91':9C,10C,15,16 '97':11C,12C,17,18 'best':6C 'electronic':19 'generic':20 'helmet':2B,8C 'of':7C 'or':21 'radio':22 'the':4C 'unsorted':23 'unsung':1A,3C 'unsungthe':5C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative metal', 'metal', 'post hardcore', 'rock', 'hardcore', 'alternative']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic', 'techno', 'acid', 'tech house']

============================== file details ==============================
                                           'mtime'  1620566862.25404  (2021-05-09 15:27:42)
                             'size'  9499136