======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '169'
                                          'artist'  'Don Cornell'
                                     'text_people'  'Jack Lawrence; Richard Myers'
                                         'release'  'Your Hit Parade: 1954'
                                           'title'  'Hold My Hand'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-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-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'vocal', '50s', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '127.766'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '54-018 POS 2'
'COMM:ID3v1 Comment:XXX'                            '54-018 POS 2'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x008\x00+\x009\x006\x00+\x002\x00B\x002\x005\x00+\x005\x007\x00C\x003\x00+\x008\x007\x00C\x003\x00+\x00B\x009\x006\x006\x00+\x00E\x00F\x00D\x00F\x00+\x001\x001\x00A\x00D\x00A\x00+\x001\x004\x00A\x003\x007\x00+\x001\x007\x008\x002\x00C\x00+\x001\x00A\x00D\x007\x009\x00+\x001\x00D\x00F\x00A\x008\x00+\x002\x001\x005\x00E\x00A\x00+\x002\x005\x007\x00B\x005\x00+\x002\x008\x005\x004\x000\x00+\x002\x00B\x006\x00A\x008\x00+\x002\x00E\x00C\x000\x002\x00+\x003\x001\x00E\x00C\x00F\x00+\x003\x005\x000\x005\x009\x00+\x003\x008\x001\x007\x001\x00+\x003\x00A\x006\x004\x00C\x00+\x003\x00D\x008\x00D\x005\x00+\x004\x001\x000\x007\x008\x00+\x004\x004\x002\x003\x00C\x00+\x004\x007\x002\x00C\x00F\x00+\x004\x00B\x002\x00B\x002\x00\x00\x00')
'PRIV:AverageLevel:\x11\x0b\x00\x00'                PRIV(owner='AverageLevel', data=b'\x11\x0b\x00\x00')
'PRIV:PeakValue:ý[\x00\x00'                         PRIV(owner='PeakValue', data=b'\xfd[\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\x009\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\x008\x002\x006\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\x009\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\x008\x002\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ÔWdp-ÀáB\x8eY>\x83|ÝÅh'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xd4Wdp-\xc0\xe1B\x8eY>\x83|\xdd\xc5h')
'PRIV:WM/WMCollectionID:ÔWdp-ÀáB\x8eY>\x83|ÝÅh'     PRIV(owner='WM/WMCollectionID', data=b'\xd4Wdp-\xc0\xe1B\x8eY>\x83|\xdd\xc5h')
'PRIV:WM/WMContentID:Û\x83\x105Ï«°E\x97nï\x18y\x1aL{'  PRIV(owner='WM/WMContentID', data=b'\xdb\x83\x105\xcf\xab\xb0E\x97n\xef\x18y\x1aL{')
'TALB' (Album/Movie/Show title)                     'Your Hit Parade: 1954'
'TBPM' (BPM (beats per minute))                     '127.766'
'TCOM' (Composer)                                   'Jack Lawrence; Richard Myers'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         'Hold My Hand'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '169426'
'TPE1' (Lead performer(s)/Soloist(s))               'Don Cornell'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Time-Life'
'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'                                   ['oldies', 'vocal', '50s', 'pop']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.61 dB'
'TXXX:replaygain_track_peak'                        '0.509385'

========================== row from database ==========================
                                              'id'  1434215
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/54-018 - Don Cornell - Hold My Hand.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  169
                                           'genre'  prerock-vocal
                                        'filesize'  6780665
                                           'mtime'  1621853322
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 018 prerock vocal
                                      'tag_artist'  Don Cornell
                                     'tag_release'  Your Hit Parade: 1954
                                       'tag_title'  Hold My Hand
                                             'bpm'  127.766
                                    'search_title'  'hand':3 'hold':1 'my':2
                                   'search_artist'  'cornell':2 'don':1
                                  'search_release'  '1954':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':15 '1954':10C 'cornell':5B 'country':14 'don':4B 'exotica':12 'hand':3A 'hit':7C 'hold':1A 'jazz':11 'my':2A 'oldies':13 'parade':8C,9C 'prerock':16 'vocal':17 'your':6C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6A
                                           '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-1']
                                      'lastfmtags'  ['oldies', 'vocal', '50s', 'pop']
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853322.442444  (2021-05-24 12:48:42)
                             'size'  6780665