======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '200'
                                          'artist'  'Sufjan Stevens'
                                     'text_people'  ''
                                         'release'  'Illinois'
                                           'title'  'John Wayne Gacy, Jr.'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'beautiful', 'mellow', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'pop', 'stage & screen', 'folk rock', 'indie pop', 'theme']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '145.9'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:t\x16\x00\x00'                   PRIV(owner='AverageLevel', data=b't\x16\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'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)                     'Illinois'
'TBPM' (BPM (beats per minute))                     '145.9'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'John Wayne Gacy, Jr.'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sufjan Stevens'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop', 'stage & screen', 'folk rock', 'indie pop', 'theme']
'TXXX:lastfmtags'                                   ['indie', 'beautiful', 'mellow', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.60 dB'
'TXXX:replaygain_track_peak'                        '0.432883'

========================== row from database ==========================
                                              'id'  1258033
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Sufjan Stevens/Illinois/04 - john wayne gacy, jr..mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  200
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  4801565
                                           'mtime'  1636759520
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 04 john wayne gacy, jr. ifs songwriter indie unsorted
                                      'tag_artist'  Sufjan Stevens
                                     'tag_release'  Illinois
                                       'tag_title'  John Wayne Gacy, Jr.
                                             'bpm'  145.9
                                    'search_title'  'gacy':3,4 'john':1 'jr':5,6 'wayne':2
                                   'search_artist'  'stevens':2 'sufjan':1
                                  'search_release'  'illinois':1
                                     'search_rest'  '00singer':1 'eos':3 'gacy':6,7 'ifs':10 'indie':11 'john':4 'jr':8,9 'songwriter':2 'unsorted':12 'wayne':5
                                    'search_combo'  '00singer':10 'eos':12 'gacy':3A,4A,15,16 'ifs':19 'illinois':9C 'indie':20 'john':1A,13 'jr':5A,6A,17,18 'songwriter':11 'stevens':8B 'sufjan':7B 'unsorted':21 'wayne':2A,14
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'beautiful', 'mellow', 'folk', 'singer songwriter']
                                        'tag_date'  2005
                                     'discogstags'  ['rock', 'pop', 'stage & screen', 'folk rock', 'indie pop', 'theme']

============================== file details ==============================
                                           'mtime'  1636759519.818862  (2021-11-13 00:25:19)
                             'size'  4801565