======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '136'
                                          'artist'  'The Spotnicks'
                                     'text_people'  'A. Raisner'
                                         'release'  'Charttoppers recorded 1977'
                                           'title'  '15 Rocket man'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'surf', 'ed hits', 'guitar', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '82'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

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'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 \x005\x008\x003\x007\x007\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x002\x000\x006\x009\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x004\x002\x002\x004\x004\x009\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x008\x003\x007\x007\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x002\x000\x006\x009\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x004\x002\x002\x004\x004\x009\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:y¨G¥bÝ\x00H©\x8d¨ûÆ\t\x1b\t'  PRIV(owner='WM/WMCollectionGroupID', data=b'y\xa8G\xa5b\xdd\x00H\xa9\x8d\xa8\xfb\xc6\t\x1b\t')
'PRIV:WM/WMCollectionID:y¨G¥bÝ\x00H©\x8d¨ûÆ\t\x1b\t'  PRIV(owner='WM/WMCollectionID', data=b'y\xa8G\xa5b\xdd\x00H\xa9\x8d\xa8\xfb\xc6\t\x1b\t')
'PRIV:WM/WMContentID:o_++\x95Öé@±û²yÐÁ\x9dG'        PRIV(owner='WM/WMContentID', data=b'o_++\x95\xd6\xe9@\xb1\xfb\xb2y\xd0\xc1\x9dG')
'TALB' (Album/Movie/Show title)                     'Charttoppers recorded 1977'
'TBPM' (BPM (beats per minute))                     '82'
'TCOM' (Composer)                                   'A. Raisner'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         '15 Rocket man'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '136426'
'TPE1' (Lead performer(s)/Soloist(s))               'Spotnicks'
'TPE2' (Band/orchestra/accompaniment)               'The Spotnicks'
'TPUB' (Publisher)                                  'Polydor'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'surf', 'ed hits', 'guitar', '60s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.52 dB'
'TXXX:replaygain_track_peak'                        '0.777020'

========================== row from database ==========================
                                              'id'  447310
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Spotnicks-1962-1990-23 cd/The Spotnicks-1977-Charttoppers recorded/015-Rocket man (Ver 2 ) .mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  136
                                           'genre'  rock-pop-surf
                                        'filesize'  2187273
                                           'mtime'  1620736742
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1962 1990 23 cd 015 (Ver 2 ) rock pop surf
                                      'tag_artist'  The Spotnicks
                                     'tag_release'  Charttoppers recorded 1977
                                       'tag_title'  15 Rocket man
                                             'bpm'  82.0
                                    'search_title'  'man':2 'rocket':1
                                   'search_artist'  'spotnicks':2 'the':1
                                  'search_release'  '1977':3 'charttoppers':1 'recorded':2
                                     'search_rest'  '1962':1 '1990':2 '2':7 '23':3 'cd':4 'pop':9 'rock':8 'surf':10 'ver':5,6
                                    'search_combo'  '1962':8 '1977':7C '1990':9 '2':14 '23':10 'cd':11 'charttoppers':5C 'man':2A 'pop':16 'recorded':6C 'rock':15 'rocket':1A 'spotnicks':4B 'surf':17 'the':3B 'ver':12,13
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'surf', 'ed hits', 'guitar', '60s']
                                        'tag_date'  1977
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736742.0346465  (2021-05-11 14:39:02)
                             'size'  2187273