======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '258'
                                          'artist'  'Seasick Steve'
                                     'text_people'  ''
                                         'release'  'I Started Out with Nothin and I Still Got Most of It Left'
                                           'title'  'Thunderbird'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues rock', 'country', 'blues', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '90.210'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:AverageLevel:{"\x00\x00'                      PRIV(owner='AverageLevel', data=b'{"\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\x7f\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 \x001\x004\x002\x002\x008\x005\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x008\x005\x009\x006\x006\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x004\x009\x008\x001\x007\x002\x001\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x004\x002\x002\x008\x005\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x008\x005\x009\x006\x006\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x004\x009\x008\x001\x007\x002\x001\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:öC4%;n\x01C¥+M¡Ï\tT\x89'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xf6C4%;n\x01C\xa5+M\xa1\xcf\tT\x89')
'PRIV:WM/WMCollectionID:öC4%;n\x01C¥+M¡Ï\tT\x89'    PRIV(owner='WM/WMCollectionID', data=b'\xf6C4%;n\x01C\xa5+M\xa1\xcf\tT\x89')
'PRIV:WM/WMContentID:~p\x89¸í(\x85G£MØ^&\x99\x9e\x90'  PRIV(owner='WM/WMContentID', data=b'~p\x89\xb8\xed(\x85G\xa3M\xd8^&\x99\x9e\x90')
'TALB' (Album/Movie/Show title)                     'I Started Out with Nothin and I Still Got Most of It Left'
'TBPM' (BPM (beats per minute))                     '90.210'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Thunderbird'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '259066'
'TPE1' (Lead performer(s)/Soloist(s))               'Seasick Steve'
'TPE2' (Band/orchestra/accompaniment)               'Seasick Steve'
'TPUB' (Publisher)                                  "WEA Int'l"
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues rock', 'country', 'blues', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.372711'

========================== row from database ==========================
                                              'id'  1249669
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Seasick Steve/I Started Out With Nothing/06 thunderbird.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  258
                                           'genre'  prerock-jb-blues
                                        'filesize'  10357700
                                           'mtime'  1620402545
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country With Nothing 06 thunderbird prerock jb blues
                                      'tag_artist'  Seasick Steve
                                     'tag_release'  I Started Out with Nothin and I Still Got Most of It Left
                                       'tag_title'  Thunderbird
                                             'bpm'  90.21
                                    'search_title'  'thunderbird':1
                                   'search_artist'  'seasick':1 'steve':2
                                  'search_release'  'and':6 'got':8 'i':1 'it':11 'left':12 'most':9 'nothin':5 'of':10 'out':3 'started':2 'still':7 'with':4
                                     'search_rest'  'blues':10 'country':4 'exotica':2 'jazz':1 'jb':9 'nothing':6 'oldies':3 'prerock':8 'thunderbird':7 'with':5
                                    'search_combo'  'and':9C 'blues':25 'country':19 'exotica':17 'got':11C 'i':4C 'it':14C 'jazz':16 'jb':24 'left':15C 'most':12C 'nothin':8C 'nothing':21 'of':13C 'oldies':18 'out':6C 'prerock':23 'seasick':2B 'started':5C 'steve':3B 'still':10C 'thunderbird':1A,22 'with':7C,20
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'country', 'blues', 'folk', 'singer songwriter']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620402545.211605  (2021-05-07 17:49:05)
                             'size'  10357700