======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '154'
                                          'artist'  'Sarah Vaughan'
                                     'text_people'  ''
                                         'release'  "Jazz 'Round Midnight"
                                           'title'  "I'll Never Smile Again"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'blues']"
                                     'discogstags'  "['jazz', 'soul-jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '130.230'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     "Jazz 'Round Midnight"
'TBPM' (BPM (beats per minute))                     '130.230'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-vocal'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         "I'll Never Smile Again"
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Sarah Vaughan'
'TRCK' (Track number/Position in set)               '12'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MP3GAIN_MINMAX'                               '133,183'
'TXXX:MP3GAIN_UNDO'                                 '+002,+002,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'soul-jazz']
'TXXX:lastfmtags'                                   ['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'blues']
'TXXX:original release date'                        ['1992', '1989']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.74 dB'
'TXXX:replaygain_track_peak'                        '0.595452'

========================== row from database ==========================
                                              'id'  1519902
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Sarah Vaughan/12 - I_ll Never Smile Again.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  154
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  3098496
                                           'mtime'  1620534634
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 12 I_ll prerock jb jazz vocal
                                      'tag_artist'  Sarah Vaughan
                                     'tag_release'  Jazz 'Round Midnight
                                       'tag_title'  I'll Never Smile Again
                                             'bpm'  130.23
                                    'search_title'  'again':6 'i':1 'ill':3 'll':2 'never':4 'smile':5
                                   'search_artist'  'sarah':1 'vaughan':2
                                  'search_release'  'jazz':1 'midnight':4 'round':2,3
                                     'search_rest'  'country':4 'exotica':2 'i':5 'jazz':1 'jb':8 'll':6 'oldies':3 'prerock':7 'vocal':9
                                    'search_combo'  'again':6A 'country':16 'exotica':14 'i':1A,17 'ill':3A 'jazz':9C,13 'jb':20 'll':2A,18 'midnight':12C 'never':4A 'oldies':15 'prerock':19 'round':10C,11C 'sarah':7B 'smile':5A 'vaughan':8B 'vocal':21
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['vocal jazz', 'jazz vocal', 'jazz', 'female vocalists', 'blues']
                                        'tag_date'  1989
                                     'discogstags'  ['jazz', 'soul-jazz']

============================== file details ==============================
                                           'mtime'  1620534634.1112082  (2021-05-09 06:30:34)
                             'size'  3098496