======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '202'
                                          'artist'  'Gabriel Fauré'
                                     'text_people'  ''
                                         'release'  'Calm (disc 2)'
                                           'title'  'In Paradisum From Requiem'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['french', 'composers', 'piano', 'romantic', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '146.000'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Calm (disc 2)'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'In Paradisum From Requiem'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gabriel Fauré'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['french', 'composers', 'piano', 'romantic', 'classical']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.23 dB'
'TXXX:replaygain_track_peak'                        '0.852501'

========================== row from database ==========================
                                              'id'  189566
                                            'path'  /data/Music/Bulk/00instruments-classical/Unsorted/11 - in paradisum from requiem.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  202
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  6483571
                                           'mtime'  1620561859
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Unsorted 11 in paradisum from requiem prerock classical or classical instruments
                                      'tag_artist'  Gabriel Fauré
                                     'tag_release'  Calm (disc 2)
                                       'tag_title'  In Paradisum From Requiem
                                             'bpm'  146.0
                                    'search_title'  'from':3 'in':1 'paradisum':2 'requiem':4
                                   'search_artist'  'faure':2,3 'gabriel':1
                                  'search_release'  '2':4,5 'calm':1 'disc':2,3
                                     'search_rest'  '00instruments':1 'classical':2 'from':6 'in':4 'instruments':10 'or':9 'paradisum':5 'prerock':8 'requiem':7 'unsorted':3
                                    'search_combo'  '00instruments':13 '2':11C,12C 'calm':8C 'classical':14 'disc':9C,10C 'faure':6B,7B 'from':3A,18 'gabriel':5B 'in':1A,16 'instruments':22 'or':21 'paradisum':2A,17 'prerock':20 'requiem':4A,19 'unsorted':15
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['french', 'composers', 'piano', 'romantic', 'classical']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561858.8098736  (2021-05-09 14:04:18)
                             'size'  6483571