======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '122'
                                          'artist'  'Jack Scott'
                                     'text_people'  'Jack Scott'
                                         'release'  'Greatest Hits'
                                           'title'  'With Your Love'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'country', 'oldies', '50s', 'rockabilly']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'rock-pop-early'
                                             'bpm'  '143.619'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-231 POS 28'
'COMM:ID3v1 Comment:XXX'                            '58-231 POS 28'
'MCDI' (Music CD identifier)                        MCDI(data=b'B\x00+\x009\x006\x00+\x003\x001\x008\x000\x00+\x005\x007\x006\x004\x00+\x007\x00D\x002\x00F\x00+\x00A\x001\x002\x004\x00+\x00D\x000\x00B\x008\x00+\x00F\x00B\x002\x002\x00+\x001\x002\x002\x00A\x00F\x00+\x001\x004\x00B\x008\x006\x00+\x001\x007\x00B\x000\x006\x00+\x001\x00A\x00B\x00B\x009\x00+\x001\x00D\x00C\x00D\x00B\x00\x00\x00')
'PRIV:AverageLevel:Ê\x0e\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xca\x0e\x00\x00')
'PRIV:PeakValue:pn\x00\x00'                         PRIV(owner='PeakValue', data=b'pn\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')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x001\x007\x005\x003\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x003\x007\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x003\x001\x004\x008\x006\x004\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x001\x007\x005\x003\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x003\x007\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x003\x001\x004\x008\x006\x004\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x9f×^Ò\x9aÝúM\xad¦\x95å\x10*\x06='  PRIV(owner='WM/WMCollectionGroupID', data=b'\x9f\xd7^\xd2\x9a\xdd\xfaM\xad\xa6\x95\xe5\x10*\x06=')
'PRIV:WM/WMCollectionID:\x9f×^Ò\x9aÝúM\xad¦\x95å\x10*\x06='  PRIV(owner='WM/WMCollectionID', data=b'\x9f\xd7^\xd2\x9a\xdd\xfaM\xad\xa6\x95\xe5\x10*\x06=')
'PRIV:WM/WMContentID:sM-\x19\x96LÍG½ÍTr¦\x91ʳ'     PRIV(owner='WM/WMContentID', data=b'sM-\x19\x96L\xcdG\xbd\xcdTr\xa6\x91\xca\xb3')
'TALB' (Album/Movie/Show title)                     'Greatest Hits'
'TBPM' (BPM (beats per minute))                     '143.619'
'TCOM' (Composer)                                   'Jack Scott'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'With Your Love'
'TKEY' (Initial key)                                '12A'
'TLEN' (Length)                                     '122733'
'TPE1' (Lead performer(s)/Soloist(s))               'Jack Scott'
'TPE2' (Band/orchestra/accompaniment)               'Jack Scott'
'TPUB' (Publisher)                                  'Total Recording'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock and roll', 'country', 'oldies', '50s', 'rockabilly']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+1.01 dB'
'TXXX:replaygain_track_peak'                        '0.608190'

========================== row from database ==========================
                                              'id'  1426750
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-231 - Jack Scott - With Your Love.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  122
                                           'genre'  rock-pop-early
                                        'filesize'  4906880
                                           'mtime'  1620736376
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 231 rock pop early
                                      'tag_artist'  Jack Scott
                                     'tag_release'  Greatest Hits
                                       'tag_title'  With Your Love
                                             'bpm'  143.619
                                    'search_title'  'love':3 'with':1 'your':2
                                   'search_artist'  'jack':1 'scott':2
                                  'search_release'  'greatest':1 'hits':2
                                     'search_rest'  '00oldiepop':5 '1958':6 '231':8 '58':7 'country':4 'early':11 'exotica':2 'jazz':1 'oldies':3 'pop':10 'rock':9
                                    'search_combo'  '00oldiepop':12 '1958':13 '231':15 '58':14 'country':11 'early':18 'exotica':9 'greatest':6C 'hits':7C 'jack':4B 'jazz':8 'love':3A 'oldies':10 'pop':17 'rock':16 'scott':5B 'with':1A 'your':2A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  12A
                                           '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-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'country', 'oldies', '50s', 'rockabilly']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736375.9186668  (2021-05-11 14:32:55)
                             'size'  4906880