======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '220'
                                          'artist'  'Weird Al Yankovic'
                                     'text_people'  ''
                                         'release'  'Bad Hair Day'
                                           'title'  "Callin' In Sick"
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['comedy', 'parody', 'rock', 'humor', 'funny']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'set-th-novelty-styledcovers;set-cover or covered'
                                             'bpm'  '118.775'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bad Hair Day'
'TBPM' (BPM (beats per minute))                     '118.775'
'TCON' (Content type, a.k.a. Genre)                 ['set-th-novelty-styledcovers', 'set-cover or covered']
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         "Callin' In Sick"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Weird Al Yankovic'
'TRCK' (Track number/Position in set)               '4'
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.29 dB'
'TXXX:replaygain_track_peak'                        '0.451316'

========================== row from database ==========================
                                              'id'  1340079
                                            'path'  /data/Music/Bulk/00spent/Weird Al/Weird Al Yankovic/Bad Hair Day [1996]/MBZ;#Weird Al Yankovic;#Bad Hair Day;#04;#Callin In Sick.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  220
                                           'genre'  set-th-novelty-styledcovers;set-cover or covered
                                        'filesize'  5301723
                                           'mtime'  1620343451
                                   'redo_metaread'  0
                                        'rest_str'   00spent [1996] MBZ;#Weird Yankovic;#Bad Day;#04;#Callin set th novelty styledcovers;set cover or covered
                                      'tag_artist'  Weird Al Yankovic
                                     'tag_release'  Bad Hair Day
                                       'tag_title'  Callin' In Sick
                                             'bpm'  118.775
                                    'search_title'  'callin':1,2 'in':3 'sick':4
                                   'search_artist'  'al':2 'weird':1 'yankovic':3
                                  'search_release'  'bad':1 'day':3 'hair':2
                                     'search_rest'  '00spent':1 '04':13,16 '1996':2,3 'bad':9,11 'callin':14,17 'cover':25 'covered':27 'day':12,15 'mbz':4,6 'novelty':20 'or':26 'set':18,22,24 'styledcovers':21,23 'th':19 'weird':5,7 'yankovic':8,10
                                    'search_combo'  '00spent':11 '04':23,26 '1996':12,13 'al':6B 'bad':8C,19,21 'callin':1A,2A,24,27 'cover':35 'covered':37 'day':10C,22,25 'hair':9C 'in':3A 'mbz':14,16 'novelty':30 'or':36 'set':28,32,34 'sick':4A 'styledcovers':31,33 'th':29 'weird':5B,15,17 'yankovic':7B,18,20
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['comedy', 'parody', 'rock', 'humor', 'funny']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343450.525898  (2021-05-07 01:24:10)
                             'size'  5301723