======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '164'
                                          'artist'  'Jan & Dean'
                                     'text_people'  ''
                                         'release'  'car crash'
                                           'title'  "Dead Man's Curve"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', '60s', 'oldies', 'surf rock', 'rock and roll', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'rock-pop-early;set-th-death'
                                             'bpm'  '132.1'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'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)                     'car crash'
'TBPM' (BPM (beats per minute))                     '132.1'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-early', 'set-th-death']
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         "Dead Man's Curve"
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jan & Dean'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['surf', '60s', 'oldies', 'surf rock', 'rock and roll', 'classic rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.474839'

========================== row from database ==========================
                                              'id'  1417995
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/car crash/Jan and Dean - Dead Mans Curve.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  164
                                           'genre'  rock-pop-early;set-th-death
                                        'filesize'  2633716
                                           'mtime'  1620736514
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country and Mans rock pop early;set th death
                                      'tag_artist'  Jan & Dean
                                     'tag_release'  car crash
                                       'tag_title'  Dead Man's Curve
                                             'bpm'  132.1
                                    'search_title'  'curve':5 'dead':1 'man':2 'mans':4 's':3
                                   'search_artist'  'dean':2 'jan':1
                                  'search_release'  'car':1 'crash':2
                                     'search_rest'  'and':5 'country':4 'death':14 'early':9,11 'exotica':2 'jazz':1 'mans':6 'oldies':3 'pop':8 'rock':7 'set':10,12 'th':13
                                    'search_combo'  'and':14 'car':8C 'country':13 'crash':9C 'curve':5A 'dead':1A 'dean':7B 'death':23 'early':18,20 'exotica':11 'jan':6B 'jazz':10 'man':2A 'mans':4A,15 'oldies':12 'pop':17 'rock':16 's':3A 'set':19,21 'th':22
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['surf', '60s', 'oldies', 'surf rock', 'rock and roll', 'classic rock']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736514.2370496  (2021-05-11 14:35:14)
                             'size'  2633716