======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '24'
                                          'artist'  'Weird Al Yankovic'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Harvey The Wonder Hamster'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', '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'  '1'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'set-th-novelty-styledcovers;set-cover or covered'
                                             'bpm'  '119.971'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '119.971'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty-styledcovers', 'set-cover or covered']
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Harvey The Wonder Hamster'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Weird Al Yankovic'
'TRCK' (Track number/Position in set)               '1'
'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'                                       '1'
'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'                        '+0.01 dB'
'TXXX:replaygain_track_peak'                        '0.533962'

========================== row from database ==========================
                                              'id'  1346691
                                            'path'  /data/Music/Bulk/00spent/Weird Al/01. Harvey The Wonder Hamster.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  24
                                           'genre'  set-th-novelty-styledcovers;set-cover or covered
                                        'filesize'  396815
                                           'mtime'  1620343450
                                   'redo_metaread'  0
                                        'rest_str'   00spent 01. set th novelty styledcovers;set cover or covered
                                      'tag_artist'  Weird Al Yankovic
                                     'tag_release'  None
                                       'tag_title'  Harvey The Wonder Hamster
                                             'bpm'  119.971
                                    'search_title'  'hamster':4 'harvey':1 'the':2 'wonder':3
                                   'search_artist'  'al':2 'weird':1 'yankovic':3
                                  'search_release'  
                                     'search_rest'  '00spent':1 '01':2,3 'cover':11 'covered':13 'novelty':6 'or':12 'set':4,8,10 'styledcovers':7,9 'th':5
                                    'search_combo'  '00spent':8 '01':9,10 'al':6B 'cover':18 'covered':20 'hamster':4A 'harvey':1A 'novelty':13 'or':19 'set':11,15,17 'styledcovers':14,16 'th':12 'the':2A 'weird':5B 'wonder':3A 'yankovic':7B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  2B
                                           '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-1', 'q-grit-2']
                                      'lastfmtags'  ['comedy', 'parody', 'rock', 'humor', 'funny']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343450.260461  (2021-05-07 01:24:10)
                             'size'  396815