======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '258'
                                          'artist'  'Jack Grunsky'
                                     'text_people'  ''
                                         'release'  'I Used To Hear That On The Radio Vol. 2'
                                           'title'  'Katherine'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['lounge', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '19'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'set-th-sex;rock-unsorted'
                                             'bpm'  '137.758'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 0000037F 000003C2 00003F78 00003FF6 00010BF5 00010BF5 0000705E 00007B4E '
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B28 0000000000AE0AC8 00000000 005EAB1B 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '19+FEC36FAD9C1172DC9311BFE4DECB3B14+10943677'
'TALB' (Album/Movie/Show title)                     'I Used To Hear That On The Radio Vol. 2'
'TBPM' (BPM (beats per minute))                     '137.758'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-sex', 'rock-unsorted']
'TDRC' (Recording time)                             '2002'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Katherine'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jack Grunsky'
'TRCK' (Track number/Position in set)               '7/19'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['lounge', '60s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.676680'

========================== row from database ==========================
                                              'id'  771400
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/sexy/Jack Grunsky - Catherine.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  258
                                           'genre'  set-th-sex;rock-unsorted
                                        'filesize'  6211431
                                           'mtime'  1620343516
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes sexy Catherine set sex;rock unsorted
                                      'tag_artist'  Jack Grunsky
                                     'tag_release'  I Used To Hear That On The Radio Vol. 2
                                       'tag_title'  Katherine
                                             'bpm'  137.758
                                    'search_title'  'katherine':1
                                   'search_artist'  'grunsky':2 'jack':1
                                  'search_release'  '2':11 'hear':4 'i':1 'on':6 'radio':8 'that':5 'the':7 'to':3 'used':2 'vol':9,10
                                     'search_rest'  '0novelty':2 '0playlists':1 'catherine':5 'rock':8,10 'set':6 'sex':7,9 'sexy':4 'themes':3 'unsorted':11
                                    'search_combo'  '0novelty':16 '0playlists':15 '2':14C 'catherine':19 'grunsky':3B 'hear':7C 'i':4C 'jack':2B 'katherine':1A 'on':9C 'radio':11C 'rock':22,24 'set':20 'sex':21,23 'sexy':18 'that':8C 'the':10C 'themes':17 'to':6C 'unsorted':25 'used':5C 'vol':12C,13C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10A
                                           '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-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['lounge', '60s']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343516.258639  (2021-05-07 01:25:16)
                             'size'  6211431