======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '117'
                                          'artist'  'Four Jones Boys'
                                     'text_people'  ''
                                         'release'  'British Beat Before the Beatles, Vol. 1: 1955-1956'
                                           'title'  'Tutti Frutti'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', '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-2', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['50s rock n roll']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '93.629'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:Amadeus II 3.5:pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA'  PRIV(owner='Amadeus II 3.5', data=b'pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA')
'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)                     'British Beat Before the Beatles, Vol. 1: 1955-1956'
'TBPM' (BPM (beats per minute))                     '93.629'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Tutti Frutti'
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '120032'
'TPE1' (Lead performer(s)/Soloist(s))               'Four Jones Boys'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   '50s rock n roll'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+0.30 dB'
'TXXX:replaygain_track_peak'                        '0.589672'

========================== row from database ==========================
                                              'id'  735856
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Four Jones Boys - Tutti Frutti (Decca (UK), 1956).mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  117
                                           'genre'  set-th-candy
                                        'filesize'  1432007
                                           'mtime'  1620343113
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets (Decca (UK), 1956) set candy
                                      'tag_artist'  Four Jones Boys
                                     'tag_release'  British Beat Before the Beatles, Vol. 1: 1955-1956
                                       'tag_title'  Tutti Frutti
                                             'bpm'  93.629
                                    'search_title'  'frutti':2 'tutti':1
                                   'search_artist'  'boys':3 'four':1 'jones':2
                                  'search_release'  '1':9,10 '1955':11 '19551956':13 '1956':12 'beat':2 'beatles':5,6 'before':3 'british':1 'the':4 'vol':7,8
                                     'search_rest'  '1956':10,11 'candy':13 'country':4 'decca':6,7 'exotica':2 'jazz':1 'oldies':3 'set':12 'sweets':5 'uk':8,9
                                    'search_combo'  '1':14C,15C '1955':16C '19551956':18C '1956':17C,28,29 'beat':7C 'beatles':10C,11C 'before':8C 'boys':5B 'british':6C 'candy':31 'country':22 'decca':24,25 'exotica':20 'four':3B 'frutti':2A 'jazz':19 'jones':4B 'oldies':21 'set':30 'sweets':23 'the':9C 'tutti':1A 'uk':26,27 'vol':12C,13C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  3A
                                           '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-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['50s rock n roll']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343112.6975796  (2021-05-07 01:18:32)
                             'size'  1432007