======================== unified (from filesystem) ========================
                                         'bitrate'  '192.008'
                                        'duration'  '149'
                                          'artist'  'Louie Prima'
                                     'text_people'  ''
                                         'release'  'sweets'
                                           'title'  'Banana Split For My Baby'
                                           'quals'  ("['Q-OLDST-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-syn-1', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', "
 "'q-other-2', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['swing', 'jazz', 'big band', 'lounge', 'jazz vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '137.478'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\x13\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x13\x00\x00')
'PRIV:PeakValue:¡u\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1u\x00\x00')
'TALB' (Album/Movie/Show title)                     'sweets'
'TBPM' (BPM (beats per minute))                     '137.478'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TENC' (Encoded by)                                 'Amadeus II'
'TIT2' (Title/songname/content description)         'Banana Split For My Baby'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Louie Prima'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['swing', 'jazz', 'big band', 'lounge', 'jazz vocal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.48 dB'
'TXXX:replaygain_track_peak'                        '0.917560'

========================== row from database ==========================
                                              'id'  735900
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Louie Prima - Banana Split For My Baby.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  149
                                           'genre'  set-th-candy
                                        'filesize'  3598962
                                           'mtime'  1620343119
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country set th candy
                                      'tag_artist'  Louie Prima
                                     'tag_release'  sweets
                                       'tag_title'  Banana Split For My Baby
                                             'bpm'  137.478
                                    'search_title'  'baby':5 'banana':1 'for':3 'my':4 'split':2
                                   'search_artist'  'louie':1 'prima':2
                                  'search_release'  'sweets':1
                                     'search_rest'  'candy':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':5 'th':6
                                    'search_combo'  'baby':5A 'banana':1A 'candy':15 'country':12 'exotica':10 'for':3A 'jazz':9 'louie':6B 'my':4A 'oldies':11 'prima':7B 'set':13 'split':2A 'sweets':8C 'th':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', '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-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['swing', 'jazz', 'big band', 'lounge', 'jazz vocal']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343119.1427557  (2021-05-07 01:18:39)
                             'size'  3598962