======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '278'
                                          'artist'  'Weird Al Yankovic'
                                     'text_people'  ''
                                         'release'  'Off The Deep End'
                                           'title'  'When I Was Your Age'
                                           'quals'  ("['Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['comedy', 'parody', 'rock', 'humor', 'funny']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-novelty-styledcovers;set-cover or covered'
                                             'bpm'  '102.024'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Off The Deep End'
'TBPM' (BPM (beats per minute))                     '102.024'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty-styledcovers', 'set-cover or covered']
'TIT2' (Title/songname/content description)         'When I Was Your Age'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Weird Al Yankovic'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['comedy', 'parody', 'rock', 'humor', 'funny']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.81 dB'
'TXXX:replaygain_track_peak'                        '0.574755'

========================== row from database ==========================
                                              'id'  1293774
                                            'path'  /data/Music/Bulk/00spent/Weird Al/Weird Al Yankovic/MBZ;#Weird Al Yankovic;#Off The Deep End;#07;#When I Was Your Age.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  278
                                           'genre'  set-th-novelty-styledcovers;set-cover or covered
                                        'filesize'  4462054
                                           'mtime'  1620343475
                                   'redo_metaread'  0
                                        'rest_str'   00spent MBZ;#Weird Yankovic;#Off End;#07;#When set th novelty styledcovers;set cover or covered
                                      'tag_artist'  Weird Al Yankovic
                                     'tag_release'  Off The Deep End
                                       'tag_title'  When I Was Your Age
                                             'bpm'  102.024
                                    'search_title'  'age':5 'i':2 'was':3 'when':1 'your':4
                                   'search_artist'  'al':2 'weird':1 'yankovic':3
                                  'search_release'  'deep':3 'end':4 'off':1 'the':2
                                     'search_rest'  '00spent':1 '07':11,14 'cover':23 'covered':25 'end':10,13 'mbz':2,4 'novelty':18 'off':7,9 'or':24 'set':16,20,22 'styledcovers':19,21 'th':17 'weird':3,5 'when':12,15 'yankovic':6,8
                                    'search_combo'  '00spent':13 '07':23,26 'age':5A 'al':7B 'cover':35 'covered':37 'deep':11C 'end':12C,22,25 'i':2A 'mbz':14,16 'novelty':30 'off':9C,19,21 'or':36 'set':28,32,34 'styledcovers':31,33 'th':29 'the':10C 'was':3A 'weird':6B,15,17 'when':1A,24,27 'yankovic':8B,18,20 'your':4A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['comedy', 'parody', 'rock', 'humor', 'funny']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343475.278322  (2021-05-07 01:24:35)
                             'size'  4462054