======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '284'
                                          'artist'  'Cat Power'
                                     'text_people'  'Chan Marshall'
                                         'release'  'You Are Free'
                                           'title'  'Evolution'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'Q-PLAY-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-1', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-4']")
                                      'lastfmtags'  "['indie', 'alternative', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '87.069'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '14'
'COMM:iTunes_CDDB_1:eng'                            'AB0C780E+239605+14+150+14042+30092+48002+61805+80412+97597+113492+134255+147492+166917+188740+200895+218250'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '14'
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'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')
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"PRIV:WM/WMCollectionID:Ö¥\x1aEÕ°\xadL\x94'&ë\x07\tñÏ"  PRIV(owner='WM/WMCollectionID', data=b"\xd6\xa5\x1aE\xd5\xb0\xadL\x94'&\xeb\x07\t\xf1\xcf")
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'TALB' (Album/Movie/Show title)                     'You Are Free'
'TBPM' (BPM (beats per minute))                     '87.069'
'TCOM' (Composer)                                   'Chan Marshall'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'iTunes v2.0.2'
'TIT2' (Title/songname/content description)         'Evolution'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cat Power'
'TPE2' (Band/orchestra/accompaniment)               'Cat Power'
'TPUB' (Publisher)                                  'Matador'
'TRCK' (Track number/Position in set)               '14'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.67 dB'
'TXXX:replaygain_track_peak'                        '0.498880'

========================== row from database ==========================
                                              'id'  1324466
                                            'path'  /data/Music/Bulk/00poprockelectronic/Cat Power/You Are Free/14 - cat power - evolution.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  284
                                           'genre'  ifs-songwriter
                                        'filesize'  6837033
                                           'mtime'  1637330719
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 14 cat power evolution ifs songwriter
                                      'tag_artist'  Cat Power
                                     'tag_release'  You Are Free
                                       'tag_title'  Evolution
                                             'bpm'  87.069
                                    'search_title'  'evolution':1
                                   'search_artist'  'cat':1 'power':2
                                  'search_release'  'are':2 'free':3 'you':1
                                     'search_rest'  '00poprockelectronic':1 'cat':2 'evolution':4 'ifs':5 'power':3 'songwriter':6
                                    'search_combo'  '00poprockelectronic':7 'are':5C 'cat':2B,8 'evolution':1A,10 'free':6C 'ifs':11 'power':3B,9 'songwriter':12 'you':4C
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  2003
                                     'discogstags'  ['rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1637330718.8296485  (2021-11-19 15:05:18)
                             'size'  6837033