======================== unified (from filesystem) ========================
                                         'bitrate'  '190.921'
                                        'duration'  '286'
                                          'artist'  'Spin'
                                     'text_people'  ''
                                         'release'  'progsoup 6'
                                           'title'  'Sea And Seasons'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'industrial', 'jazz', 'romanian', 'rock']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '28'
                                      'tracktotal'  ''
                                            'date'  '1976'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '141.611'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'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')
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'PRIV:WM/WMCollectionGroupID:\x1f\x82\x12æ×ÈÅ@§\x91\x12¢£MÆf'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x1f\x82\x12\xe6\xd7\xc8\xc5@\xa7\x91\x12\xa2\xa3M\xc6f')
'PRIV:WM/WMCollectionID:\x1f\x82\x12æ×ÈÅ@§\x91\x12¢£MÆf'  PRIV(owner='WM/WMCollectionID', data=b'\x1f\x82\x12\xe6\xd7\xc8\xc5@\xa7\x91\x12\xa2\xa3M\xc6f')
'PRIV:WM/WMContentID:åÀv"\x89IìA\x9e¤´[\x06ç¹\x1a'  PRIV(owner='WM/WMContentID', data=b'\xe5\xc0v"\x89I\xecA\x9e\xa4\xb4[\x06\xe7\xb9\x1a')
'TALB' (Album/Movie/Show title)                     'progsoup 6'
'TBPM' (BPM (beats per minute))                     '141.611'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1976'
'TIT2' (Title/songname/content description)         'Sea And Seasons'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Spin'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Ariola'
'TRCK' (Track number/Position in set)               '28'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['alternative rock', 'industrial', 'jazz', 'romanian', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+0.50 dB'
'TXXX:replaygain_track_peak'                        '0.354135'

========================== row from database ==========================
                                              'id'  1409346
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup6/364 spin -  Sea And Seasons.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  286
                                           'genre'  rock-cppex-progressive
                                        'filesize'  6852074
                                           'mtime'  1620737688
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup6 364 spin rock cppex progressive
                                      'tag_artist'  Spin
                                     'tag_release'  progsoup 6
                                       'tag_title'  Sea And Seasons
                                             'bpm'  141.611
                                    'search_title'  'and':2 'sea':1 'seasons':3
                                   'search_artist'  'spin':1
                                  'search_release'  '6':2 'progsoup':1
                                     'search_rest'  '364':4 'classicprogpsy':1 'cppex':7 'progressive':8 'progsoup':2 'progsoup6':3 'rock':6 'spin':5
                                    'search_combo'  '364':10 '6':6C 'and':2A 'classicprogpsy':7 'cppex':13 'progressive':14 'progsoup':5C,8 'progsoup6':9 'rock':12 'sea':1A 'seasons':3A 'spin':4B,11
                                    'tag_tracknum'  28
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'industrial', 'jazz', 'romanian', 'rock']
                                        'tag_date'  1976
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1620737688.4194038  (2021-05-11 14:54:48)
                             'size'  6852074