======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '156'
                                          'artist'  'Dean Martin'
                                     'text_people'  '? Gallup/? Steiner'
                                         'release'  'All the Hits: 1948-1969 Disc 1'
                                           'title'  "I'd Cry Like A Baby"
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', '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'  "['lounge', 'easy listening', 'jazz', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '86.180'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '54-175 POS 21'
'COMM:ID3v1 Comment:XXX'                            '54-175 POS 21'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x004\x00+\x00B\x006\x00+\x003\x006\x00B\x00C\x00+\x006\x003\x00D\x008\x00+\x009\x001\x006\x004\x00+\x00C\x002\x00C\x009\x00+\x00F\x008\x008\x001\x00+\x001\x002\x00F\x006\x00D\x00+\x001\x005\x00C\x00D\x006\x00+\x001\x008\x00C\x00E\x005\x00+\x001\x00B\x00A\x00D\x005\x00+\x001\x00F\x000\x005\x001\x00+\x002\x001\x008\x00D\x00B\x00+\x002\x004\x00A\x007\x00C\x00+\x002\x007\x005\x003\x00F\x00+\x002\x009\x00B\x005\x00D\x00+\x002\x00C\x006\x004\x001\x00+\x002\x00F\x00B\x004\x000\x00+\x003\x002\x00C\x005\x00D\x00+\x003\x005\x006\x00E\x00E\x00+\x003\x008\x006\x007\x00B\x00+\x003\x00B\x006\x001\x009\x00\x00\x00')
'PRIV:AverageLevel:\x05\n\x00\x00'                  PRIV(owner='AverageLevel', data=b'\x05\n\x00\x00')
'PRIV:PeakValue:\x0cv\x00\x00'                      PRIV(owner='PeakValue', data=b'\x0cv\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 \x003\x003\x000\x003\x007\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x001\x002\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x001\x009\x000\x007\x000\x002\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x003\x003\x000\x003\x007\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x001\x002\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x001\x009\x000\x007\x000\x002\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:z\x90\x88¬#\x88^L\x8bû\x15\x1ec\x95\x9b\x1b'  PRIV(owner='WM/WMCollectionGroupID', data=b'z\x90\x88\xac#\x88^L\x8b\xfb\x15\x1ec\x95\x9b\x1b')
'PRIV:WM/WMCollectionID:z\x90\x88¬#\x88^L\x8bû\x15\x1ec\x95\x9b\x1b'  PRIV(owner='WM/WMCollectionID', data=b'z\x90\x88\xac#\x88^L\x8b\xfb\x15\x1ec\x95\x9b\x1b')
'PRIV:WM/WMContentID:öPp©P7~H\x8ev\x82J°\tßk'       PRIV(owner='WM/WMContentID', data=b'\xf6Pp\xa9P7~H\x8ev\x82J\xb0\t\xdfk')
'TALB' (Album/Movie/Show title)                     'All the Hits: 1948-1969 Disc 1'
'TBPM' (BPM (beats per minute))                     '86.180'
'TCOM' (Composer)                                   '? Gallup/? Steiner'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         "I'd Cry Like A Baby"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '156800'
'TPE1' (Lead performer(s)/Soloist(s))               'Dean Martin'
'TPE2' (Band/orchestra/accompaniment)               'Dean Martin'
'TPUB' (Publisher)                                  'Import'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['lounge', 'easy listening', 'jazz', 'oldies', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'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'                        '+1.28 dB'
'TXXX:replaygain_track_peak'                        '0.914361'

========================== row from database ==========================
                                              'id'  1522114
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/54-175 - Dean Martin - I_d Cry Like A Baby.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  156
                                           'genre'  prerock-swing
                                        'filesize'  6270440
                                           'mtime'  1620562483
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1954 54 175 I_d prerock swing
                                      'tag_artist'  Dean Martin
                                     'tag_release'  All the Hits: 1948-1969 Disc 1
                                       'tag_title'  I'd Cry Like A Baby
                                             'bpm'  86.18
                                    'search_title'  'a':6 'baby':7 'cry':4 'd':2 'i':1 'id':3 'like':5
                                   'search_artist'  'dean':1 'martin':2
                                  'search_release'  '1':9 '1948':5 '19481969':7 '1969':6 'all':1 'disc':8 'hits':3,4 'the':2
                                     'search_rest'  '00oldiepop':5 '175':8 '1954':6 '54':7 'country':4 'd':10 'exotica':2 'i':9 'jazz':1 'oldies':3 'prerock':11 'swing':12
                                    'search_combo'  '00oldiepop':23 '1':18C '175':26 '1948':14C '19481969':16C '1954':24 '1969':15C '54':25 'a':6A 'all':10C 'baby':7A 'country':22 'cry':4A 'd':2A,28 'dean':8B 'disc':17C 'exotica':20 'hits':12C,13C 'i':1A,27 'id':3A 'jazz':19 'like':5A 'martin':9B 'oldies':21 'prerock':29 'swing':30 'the':11C
                                    'tag_tracknum'  9
                                      '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-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'easy listening', 'jazz', 'oldies', 'swing']
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562482.7645073  (2021-05-09 14:14:42)
                             'size'  6270440