======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '291'
                                          'artist'  'Nektar'
                                     'text_people'  ''
                                         'release'  'progsoup 7'
                                           'title'  'Nelly The Elephant'
                                           '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-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['psychedelic rock', 'space rock', 'progressive rock', 'psychedelic', "
 "'classic rock']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1974'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '103.010'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'progsoup 7'
'TBPM' (BPM (beats per minute))                     '103.010'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '1974'
'TIT2' (Title/songname/content description)         'Nelly The Elephant'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nektar'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Bellaphon'
'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'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['psychedelic rock',
 'space rock',
 'progressive rock',
 'psychedelic',
 'classic 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'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.47 dB'
'TXXX:replaygain_track_peak'                        '0.501637'

========================== row from database ==========================
                                              'id'  1409569
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup7/412 nektar - Nelly The Elephant.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  291
                                           'genre'  rock-cppex-progressive
                                        'filesize'  9338880
                                           'mtime'  1620737695
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup7 412 nektar rock cppex progressive
                                      'tag_artist'  Nektar
                                     'tag_release'  progsoup 7
                                       'tag_title'  Nelly The Elephant
                                             'bpm'  103.01
                                    'search_title'  'elephant':3 'nelly':1 'the':2
                                   'search_artist'  'nektar':1
                                  'search_release'  '7':2 'progsoup':1
                                     'search_rest'  '412':4 'classicprogpsy':1 'cppex':7 'nektar':5 'progressive':8 'progsoup':2 'progsoup7':3 'rock':6
                                    'search_combo'  '412':10 '7':6C 'classicprogpsy':7 'cppex':13 'elephant':3A 'nektar':4B,11 'nelly':1A 'progressive':14 'progsoup':5C,8 'progsoup7':9 'rock':12 'the':2A
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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'  ['psychedelic rock', 'space rock', 'progressive rock', 'psychedelic', 'classic rock']
                                        'tag_date'  1974
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737694.5298202  (2021-05-11 14:54:54)
                             'size'  9338880