======================== unified (from filesystem) ========================
                                         'bitrate'  '244.454'
                                        'duration'  '226'
                                          'artist'  'Jethro Tull'
                                     'text_people'  ''
                                         'release'  'Stand Up'
                                           'title'  'Bourie'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']"
                                     'discogstags'  "['rock', 'prog rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1969'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic;rock-cppex-progressive'
                                             'bpm'  '125.160'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

"PRIV:AverageLevel:n'\x00\x00"                      PRIV(owner='AverageLevel', data=b"n'\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)                     'Stand Up'
'TBPM' (BPM (beats per minute))                     '125.160'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-classic', 'rock-cppex-progressive']
'TDRC' (Recording time)                             '1969'
'TIT2' (Title/songname/content description)         'Bourie'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jethro Tull'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'prog rock', 'classic rock']
'TXXX:lastfmtags'                                   ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+7.97 dB'
'TXXX:replaygain_track_peak'                        '0.293522'

========================== row from database ==========================
                                              'id'  1352783
                                            'path'  /data/Music/Bulk/00poprockelectronic/Jethro Tull/Jethro Tull - 1969 - Stand Up/03 - Bourée.mp3
                                         'working'  None
                                         'bitrate'  244
                                    'duration_sec'  226
                                           'genre'  rock-cppex-classic;rock-cppex-progressive
                                        'filesize'  6930181
                                           'mtime'  1636039242
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 1969 03 Bourée rock cppex classic;rock cppex progressive
                                      'tag_artist'  Jethro Tull
                                     'tag_release'  Stand Up
                                       'tag_title'  Bourie
                                             'bpm'  125.16
                                    'search_title'  'bourie':1
                                   'search_artist'  'jethro':1 'tull':2
                                  'search_release'  'stand':1 'up':2
                                     'search_rest'  '00poprockelectronic':1 '1969':2 'bouree':3,4 'classic':7,9 'cppex':6 'progressive':11 'rock':5,8,10
                                    'search_combo'  '00poprockelectronic':6 '1969':7 'bouree':8,9 'bourie':1A 'classic':12,14 'cppex':11 'jethro':2B 'progressive':16 'rock':10,13,15 'stand':4C 'tull':3B 'up':5C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['folk rock', 'rock', 'progressive rock', 'progressive', 'classic rock']
                                        'tag_date'  1969
                                     'discogstags'  ['rock', 'prog rock', 'classic rock']

============================== file details ==============================
                                           'mtime'  1636039242.3400114  (2021-11-04 16:20:42)
                             'size'  6930181