======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '213'
                                          'artist'  'Richard Cheese'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Stairway to Heaven'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-4', 'q-mixbeat-2', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['lounge', 'jazz', 'comedy', 'covers', 'parody']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ('prerock-jb-jazz-lounge or exotica or '
 'bossa;set-th-novelty-styledcovers;entertaining-why do i keep this;set-cover '
 'or covered')
                                             'bpm'  '103.642'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '103.642'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-lounge or exotica or bossa',
 'set-th-novelty-styledcovers',
 'entertaining-why do i keep this',
 'set-cover or covered']
'TIT2' (Title/songname/content description)         'Stairway to Heaven'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Richard Cheese'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['lounge', 'jazz', 'comedy', 'covers', 'parody']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.55 dB'
'TXXX:replaygain_track_peak'                        '0.514183'

========================== row from database ==========================
                                              'id'  1317332
                                            'path'  /data/Music/Bulk/00spent/Richard Cheese/Richard Cheese - Stairway To Heaven (Led Zeppelin).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  213
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa;set-th-novelty-styledcovers;entertaining-why do i keep this;set-cover or covered
                                        'filesize'  4265969
                                           'mtime'  1620541702
                                   'redo_metaread'  0
                                        'rest_str'   00spent To (Led Zeppelin) prerock jb jazz lounge or exotica or bossa;set th novelty styledcovers;entertaining why do keep this;set cover or covered
                                      'tag_artist'  Richard Cheese
                                     'tag_release'  None
                                       'tag_title'  Stairway to Heaven
                                             'bpm'  103.642
                                    'search_title'  'heaven':3 'stairway':1 'to':2
                                   'search_artist'  'cheese':2 'richard':1
                                  'search_release'  
                                     'search_rest'  '00spent':1 'bossa':13,15 'cover':30 'covered':31 'do':24 'entertaining':20,22 'exotica':12 'jazz':9 'jb':8 'keep':25 'led':3,4 'lounge':10 'novelty':18 'or':11 'prerock':7 'set':14,16,27,29 'styledcovers':19,21 'th':17 'this':26,28 'to':2 'why':23 'zeppelin':5,6
                                    'search_combo'  '00spent':6 'bossa':18,20 'cheese':5B 'cover':35 'covered':36 'do':29 'entertaining':25,27 'exotica':17 'heaven':3A 'jazz':14 'jb':13 'keep':30 'led':8,9 'lounge':15 'novelty':23 'or':16 'prerock':12 'richard':4B 'set':19,21,32,34 'stairway':1A 'styledcovers':24,26 'th':22 'this':31,33 'to':2A,7 'why':28 'zeppelin':10,11
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-mixbeat-2', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'jazz', 'comedy', 'covers', 'parody']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541702.1233149  (2021-05-09 08:28:22)
                             'size'  4265969