======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '178'
                                          'artist'  'Frankie Laine'
                                     'text_people'  ''
                                         'release'  'Your Hit Parade: 1957'
                                           'title'  'Moonlight Gambler'
                                           '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-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'crooners', '50s', 'oldies', 'male vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '038'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '125.006'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:AverageLevel:û\x0c\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xfb\x0c\x00\x00')
'PRIV:PeakValue:ÓV\x00\x00'                         PRIV(owner='PeakValue', data=b'\xd3V\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 \x002\x001\x002\x003\x003\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x005\x004\x009\x004\x001\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x001\x002\x003\x003\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x005\x004\x009\x004\x001\x00\x00\x00')
"PRIV:WM/WMCollectionGroupID:'=h\x1emlSM\x89\x9aª,¬Ï\x8cl"  PRIV(owner='WM/WMCollectionGroupID', data=b"'=h\x1emlSM\x89\x9a\xaa,\xac\xcf\x8cl")
"PRIV:WM/WMCollectionID:'=h\x1emlSM\x89\x9aª,¬Ï\x8cl"  PRIV(owner='WM/WMCollectionID', data=b"'=h\x1emlSM\x89\x9a\xaa,\xac\xcf\x8cl")
'PRIV:WM/WMContentID:àÏ\x13lü°-N\x99ÝøË\x10Kî\x9f'  PRIV(owner='WM/WMContentID', data=b'\xe0\xcf\x13l\xfc\xb0-N\x99\xdd\xf8\xcb\x10K\xee\x9f')
'TALB' (Album/Movie/Show title)                     'Your Hit Parade: 1957'
'TBPM' (BPM (beats per minute))                     '125.006'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Moonlight Gambler'
'TKEY' (Initial key)                                '10B'
'TLEN' (Length)                                     '178826'
'TPE1' (Lead performer(s)/Soloist(s))               'Frankie Laine'
'TPUB' (Publisher)                                  'Time-Life'
'TRCK' (Track number/Position in set)               '038'
'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'                                   ['country', 'crooners', '50s', 'oldies', 'male vocalists']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'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'                        '+0.17 dB'
'TXXX:replaygain_track_peak'                        '0.568171'

========================== row from database ==========================
                                              'id'  1443646
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-038 - Frankie Laine - Moonlight Gambler.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  178
                                           'genre'  prerock-vocal
                                        'filesize'  7153664
                                           'mtime'  1621853356
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 038 prerock vocal
                                      'tag_artist'  Frankie Laine
                                     'tag_release'  Your Hit Parade: 1957
                                       'tag_title'  Moonlight Gambler
                                             'bpm'  125.006
                                    'search_title'  'gambler':2 'moonlight':1
                                   'search_artist'  'frankie':1 'laine':2
                                  'search_release'  '1957':5 'hit':2 'parade':3,4 'your':1
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'vocal':7
                                    'search_combo'  '00oldiepop':14 '1957':9C 'country':13 'exotica':11 'frankie':3B 'gambler':2A 'hit':6C 'jazz':10 'laine':4B 'moonlight':1A 'oldies':12 'parade':7C,8C 'prerock':15 'vocal':16 'your':5C
                                    'tag_tracknum'  38
                                      'num_images'  0
                                             'key'  10B
                                           '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-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['country', 'crooners', '50s', 'oldies', 'male vocalists']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853355.8689716  (2021-05-24 12:49:15)
                             'size'  7153664