======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '372'
                                          'artist'  'Apocalypse'
                                     'text_people'  ''
                                         'release'  'Progsoup 31'
                                           'title'  'Let It Die'
                                           '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-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['progressive rock', 'crust punk', 'nwobhm', 'thrash metal', 'doom metal', "
 "'speed thrash metal']")
                                     'discogstags'  "['hard rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '61'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '142.307'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Progsoup 31'
'TBPM' (BPM (beats per minute))                     '142.307'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Let It Die'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Apocalypse'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '61'
'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'                                  ['hard rock', 'rock']
'TXXX:lastfmtags'                                   ['progressive rock',
 'crust punk',
 'nwobhm',
 'thrash metal',
 'doom metal',
 'speed thrash metal']
'TXXX:q-bass'                                       '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.56 dB'
'TXXX:replaygain_track_peak'                        '0.375718'

========================== row from database ==========================
                                              'id'  1410913
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 31 (krautsoup)/1826 apocalypse - let it die.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  372
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  14885795
                                           'mtime'  1620737155
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup (krautsoup) 1826 apocalypse let it die rock cppex progressive;set pl progspace
                                      'tag_artist'  Apocalypse
                                     'tag_release'  Progsoup 31
                                       'tag_title'  Let It Die
                                             'bpm'  142.307
                                    'search_title'  'die':3 'it':2 'let':1
                                   'search_artist'  'apocalypse':1
                                  'search_release'  '31':2 'progsoup':1
                                     'search_rest'  '1826':5 'apocalypse':6 'classicprogpsy':1 'cppex':11 'die':9 'it':8 'krautsoup':3,4 'let':7 'pl':16 'progressive':12,14 'progsoup':2 'progspace':17 'rock':10 'set':13,15
                                    'search_combo'  '1826':11 '31':6C 'apocalypse':4B,12 'classicprogpsy':7 'cppex':17 'die':3A,15 'it':2A,14 'krautsoup':9,10 'let':1A,13 'pl':22 'progressive':18,20 'progsoup':5C,8 'progspace':23 'rock':16 'set':19,21
                                    'tag_tracknum'  61
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['progressive rock', 'crust punk', 'nwobhm', 'thrash metal', 'doom metal', 'speed thrash metal']
                                        'tag_date'  1975
                                     'discogstags'  ['hard rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620737154.5059233  (2021-05-11 14:45:54)
                             'size'  14885795