======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '171'
                                          'artist'  'Clarence Williams'
                                     'text_people'  ''
                                         'release'  'JG56 Clarence Williams -Top'
                                           'title'  'Candy Lips'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['early jazz', 'blues', 'jazz', '30s', 'piano']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04'
                                      'tracktotal'  ''
                                            'date'  '1927'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;set-th-candy'
                                             'bpm'  '124.011'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\x04\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x04\x00\x00')
'PRIV:PeakValue:!\x00\x00\x00'                      PRIV(owner='PeakValue', data=b'!\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'JG56 Clarence Williams -Top'
'TBPM' (BPM (beats per minute))                     '124.011'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'set-th-candy']
'TDRC' (Recording time)                             '1927'
'TIT2' (Title/songname/content description)         'Candy Lips'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '171000'
'TPE1' (Lead performer(s)/Soloist(s))               'Clarence Williams'
'TRCK' (Track number/Position in set)               '04'
'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'                                   ['early jazz', 'blues', 'jazz', '30s', 'piano']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.15 dB'
'TXXX:replaygain_track_peak'                        '0.578879'

========================== row from database ==========================
                                              'id'  735896
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Clarence Williams - Candy Lips.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  171
                                           'genre'  prerock-jb-jazz-unsorted;set-th-candy
                                        'filesize'  2062482
                                           'mtime'  1620538086
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets prerock jb jazz unsorted;set th candy
                                      'tag_artist'  Clarence Williams
                                     'tag_release'  JG56 Clarence Williams -Top
                                       'tag_title'  Candy Lips
                                             'bpm'  124.011
                                    'search_title'  'candy':1 'lips':2
                                   'search_artist'  'clarence':1 'williams':2
                                  'search_release'  'clarence':2 'jg56':1 'top':4,5 'williams':3
                                     'search_rest'  'candy':13 'country':4 'exotica':2 'jazz':1 'jb':7 'oldies':3 'prerock':6 'set':9,11 'sweets':5 'th':12 'unsorted':8,10
                                    'search_combo'  'candy':1A,22 'clarence':3B,6C 'country':13 'exotica':11 'jazz':10 'jb':16 'jg56':5C 'lips':2A 'oldies':12 'prerock':15 'set':18,20 'sweets':14 'th':21 'top':8C,9C 'unsorted':17,19 'williams':4B,7C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['early jazz', 'blues', 'jazz', '30s', 'piano']
                                        'tag_date'  1927
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620538085.6010604  (2021-05-09 07:28:05)
                             'size'  2062482