======================== unified (from filesystem) ========================
                                         'bitrate'  '154.984'
                                        'duration'  '360'
                                          'artist'  'Koop'
                                     'text_people'  ''
                                         'release'  'Glomd'
                                           'title'  'Glomd (Cari Lekebusch)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', '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-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['acid jazz', 'jazz', 'downtempo', 'chillout', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-newer-dark or acid'
                                             'bpm'  '126.806'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:µ\x16\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xb5\x16\x00\x00')
'PRIV:PeakValue:Ìf\x00\x00'                         PRIV(owner='PeakValue', data=b'\xccf\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Glomd'
'TBPM' (BPM (beats per minute))                     '126.806'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-newer-dark or acid'
'TIT2' (Title/songname/content description)         'Glomd (Cari Lekebusch)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Koop'
'TRCK' (Track number/Position in set)               '2'
'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'                                   ['acid jazz', 'jazz', 'downtempo', 'chillout', 'electronic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-3.45 dB'
'TXXX:replaygain_track_peak'                        '0.803137'

========================== row from database ==========================
                                              'id'  783482
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Electro Jazz/Koop - Glomd (cari lekebusch).mp3
                                         'working'  None
                                         'bitrate'  154
                                    'duration_sec'  360
                                           'genre'  prerock-jb-jazz-newer-dark or acid
                                        'filesize'  6988661
                                           'mtime'  1620528645
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Electro Jazz (cari lekebusch) prerock jb jazz newer dark or acid
                                      'tag_artist'  Koop
                                     'tag_release'  Glomd
                                       'tag_title'  Glomd (Cari Lekebusch)
                                             'bpm'  126.806
                                    'search_title'  'cari':2,3 'glomd':1 'lekebusch':4,5
                                   'search_artist'  'koop':1
                                  'search_release'  'glomd':1
                                     'search_rest'  'acid':15 'cari':6,7 'country':4 'dark':13 'electro':5 'exotica':2 'jazz':1 'jb':11 'lekebusch':8,9 'newer':12 'oldies':3 'or':14 'prerock':10
                                    'search_combo'  'acid':22 'cari':2A,3A,13,14 'country':11 'dark':20 'electro':12 'exotica':9 'glomd':1A,7C 'jazz':8 'jb':18 'koop':6B 'lekebusch':4A,5A,15,16 'newer':19 'oldies':10 'or':21 'prerock':17
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6A
                                           '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-4', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['acid jazz', 'jazz', 'downtempo', 'chillout', 'electronic']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528645.341206  (2021-05-09 04:50:45)
                             'size'  6988661