======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '159'
                                          'artist'  'Johnny Marvin & Ed Smalle'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Precious Little Thing Called Love'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '143.011'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ('Debuted 1929 and peaked at #16 on Various Charts. Source: Pop Memories. '
 'Label/Number: Victor 21892. \r\n'
 '\r\n')
'COMM:ID3v1 Comment:XXX'                            'Debuted 1929 and peaked at #16'
'TBPM' (BPM (beats per minute))                     '143.011'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1929'
'TENC' (Encoded by)                                 'ProwlingOwl'
'TIT2' (Title/songname/content description)         'Precious Little Thing Called Love'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnny Marvin & Ed Smalle'
'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: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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.50 dB'
'TXXX:replaygain_track_peak'                        '0.539057'

========================== row from database ==========================
                                              'id'  959902
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Precious little thing called love - Johnny Marvin and Ed Smalle.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  159
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  2559898
                                           'mtime'  1620533897
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country little thing called love and prerock jb jazz unsorted
                                      'tag_artist'  Johnny Marvin & Ed Smalle
                                     'tag_release'  None
                                       'tag_title'  Precious Little Thing Called Love
                                             'bpm'  143.011
                                    'search_title'  'called':4 'little':2 'love':5 'precious':1 'thing':3
                                   'search_artist'  'ed':3 'johnny':1 'marvin':2 'smalle':4
                                  'search_release'  
                                     'search_rest'  'and':9 'called':7 'country':4 'exotica':2 'jazz':1 'jb':11 'little':5 'love':8 'oldies':3 'prerock':10 'thing':6 'unsorted':12
                                    'search_combo'  'and':18 'called':4A,16 'country':13 'ed':8B 'exotica':11 'jazz':10 'jb':20 'johnny':6B 'little':2A,14 'love':5A,17 'marvin':7B 'oldies':12 'precious':1A 'prerock':19 'smalle':9B 'thing':3A,15 'unsorted':21
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1929
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533896.658697  (2021-05-09 06:18:16)
                             'size'  2559898