======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '127'
                                          'artist'  'Peggy Lee'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Hey Big Spender'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', 'female vocalists', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '00'
                                      'tracktotal'  ''
                                            'date'  '1950'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing;prerock-jb-jazz-vocal;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '111.333'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'PCNT' (Play counter)                               PCNT(count=0)
'TBPM' (BPM (beats per minute))                     '111.333'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-soft-swing',
 'prerock-jb-jazz-vocal',
 'set-pl-shirleyspinoza',
 'set-pl-mor']
'TDRC' (Recording time)                             '1950'
'TIT2' (Title/songname/content description)         'Hey Big Spender'
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '40000'
'TPE1' (Lead performer(s)/Soloist(s))               'Peggy Lee'
'TRCK' (Track number/Position in set)               '00'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'jazz', 'female vocalists', 'oldies', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.12 dB'
'TXXX:replaygain_track_peak'                        '0.557703'

========================== row from database ==========================
                                              'id'  775732
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Lee, Peggy/New Folder/Peggy Lee - Hey Big Spender.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  127
                                           'genre'  prerock-jb-jazz-soft-swing;prerock-jb-jazz-vocal;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  2040699
                                           'mtime'  1620531207
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Lee, New Folder prerock jb jazz soft swing;prerock jb jazz vocal;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Peggy Lee
                                     'tag_release'  None
                                       'tag_title'  Hey Big Spender
                                             'bpm'  111.333
                                    'search_title'  'big':2 'hey':1 'spender':3
                                   'search_artist'  'lee':2 'peggy':1
                                  'search_release'  
                                     'search_rest'  'country':4 'exotica':2 'folder':8 'jazz':1 'jb':10 'lee':5,6 'mor':25 'new':7 'oldies':3 'pl':20 'prerock':9,13,15 'set':17,19,22,24 'shirleyspinoza':21,23 'soft':11 'swing':12,14 'vocal':16,18
                                    'search_combo'  'big':2A 'country':9 'exotica':7 'folder':13 'hey':1A 'jazz':6 'jb':15 'lee':5B,10,11 'mor':30 'new':12 'oldies':8 'peggy':4B 'pl':25 'prerock':14,18,20 'set':22,24,27,29 'shirleyspinoza':26,28 'soft':16 'spender':3A 'swing':17,19 'vocal':21,23
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'jazz', 'female vocalists', 'oldies', 'swing']
                                        'tag_date'  1950
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620531207.369066  (2021-05-09 05:33:27)
                             'size'  2040699