======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '45'
                                          'artist'  'Tim Steiner'
                                     'text_people'  ''
                                         'release'  "Big Ears - Fitzgerald's Manifesto"
                                           'title'  'The Pretentious Mystery Voice'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '35'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa;set-pl-mor'
                                             'bpm'  '135.0'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 000002B3 000002E1 00005F5D 000069DD 00008CEB 00008CEB 00005B89 00005DF9 '
 '00008CEB 00008CEB')
'COMM:iTunes_CDDB_IDs:eng'                          '35+F604417F459430F546C283FAAFB5BA7D+5984032'
'TALB' (Album/Movie/Show title)                     "Big Ears - Fitzgerald's Manifesto"
'TBPM' (BPM (beats per minute))                     '135.0'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-lounge or exotica or bossa', 'set-pl-mor']
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'iTunes v4.9'
'TIT2' (Title/songname/content description)         'The Pretentious Mystery Voice'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tim Steiner'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '12/35'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.68 dB'
'TXXX:replaygain_track_peak'                        '0.544752'

========================== row from database ==========================
                                              'id'  1533252
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Tim Steiner - Big Ears - Fitzgerald_s Manifesto/12 Tim Steiner.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  45
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa;set-pl-mor
                                        'filesize'  1457578
                                           'mtime'  1620536757
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Fitzgerald_s 12 prerock jb jazz lounge or exotica or bossa;set pl mor
                                      'tag_artist'  Tim Steiner
                                     'tag_release'  Big Ears - Fitzgerald's Manifesto
                                       'tag_title'  The Pretentious Mystery Voice
                                             'bpm'  135.0
                                    'search_title'  'mystery':3 'pretentious':2 'the':1 'voice':4
                                   'search_artist'  'steiner':2 'tim':1
                                  'search_release'  'big':1 'ears':2 'fitzgerald':3 'fitzgeralds':5 'manifesto':6 's':4
                                     'search_rest'  'bossa':11,13 'country':4 'exotica':2 'fitzgerald':5 'jazz':1 'jb':8 'lounge':9 'mor':16 'oldies':3 'or':10 'pl':15 'prerock':7 's':6 'set':12,14
                                    'search_combo'  'big':7C 'bossa':23,25 'country':16 'ears':8C 'exotica':14 'fitzgerald':9C,17 'fitzgeralds':11C 'jazz':13 'jb':20 'lounge':21 'manifesto':12C 'mor':28 'mystery':3A 'oldies':15 'or':22 'pl':27 'prerock':19 'pretentious':2A 's':10C,18 'set':24,26 'steiner':6B 'the':1A 'tim':5B 'voice':4A
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536757.274853  (2021-05-09 07:05:57)
                             'size'  1457578