======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '112'
                                          'artist'  'Tex Beneke and Margaret Whiting'
                                     'text_people'  ''
                                         'release'  'Fallout 3: The Unofficial Soundtrack'
                                           'title'  'A Wonderful Guy'
                                           'quals'  ("['Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', "
 "'q-grit-1', 'q-play-3', 'Q-OLDST-1', 'q-chart-2', 'q-drums-1', 'q-other-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['swing', 'jazz', 'oldies', 'blues', 'fallout 3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1934'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '138.987'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ÿþoSgn-sBDC_suot1m1:eng'                      '39s0'
'TALB' (Album/Movie/Show title)                     'Fallout 3: The Unofficial Soundtrack'
'TBPM' (BPM (beats per minute))                     '138.987'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDOR' (Original release time)                      '1934'
'TDRC' (Recording time)                             '1934'
'TIT2' (Title/songname/content description)         'A Wonderful Guy'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tex Beneke and Margaret Whiting'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['swing', 'jazz', 'oldies', 'blues', 'fallout 3']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.05 dB'
'TXXX:replaygain_track_peak'                        '0.559123'
'TXXX:ÿþLAUBAMTRSISTRO'                             'TaViruo srAitts'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c2e9776b-8681-48f2-9ae3-69140f33aa93')

========================== row from database ==========================
                                              'id'  263872
                                            'path'  /data/Music/Bulk/0soundtrack/GNR/Tex Beneke and Margaret Whiting - A Wonderful Guy.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  112
                                           'genre'  prerock-unsorted
                                        'filesize'  2704355
                                           'mtime'  1620388074
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack GNR prerock unsorted
                                      'tag_artist'  Tex Beneke and Margaret Whiting
                                     'tag_release'  Fallout 3: The Unofficial Soundtrack
                                       'tag_title'  A Wonderful Guy
                                             'bpm'  138.987
                                    'search_title'  'a':1 'guy':3 'wonderful':2
                                   'search_artist'  'and':3 'beneke':2 'margaret':4 'tex':1 'whiting':5
                                  'search_release'  '3':2,3 'fallout':1 'soundtrack':6 'the':4 'unofficial':5
                                     'search_rest'  '0soundtrack':1 'gnr':2 'prerock':3 'unsorted':4
                                    'search_combo'  '0soundtrack':15 '3':10C,11C 'a':1A 'and':6B 'beneke':5B 'fallout':9C 'gnr':16 'guy':3A 'margaret':7B 'prerock':17 'soundtrack':14C 'tex':4B 'the':12C 'unofficial':13C 'unsorted':18 'whiting':8B 'wonderful':2A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['swing', 'jazz', 'oldies', 'blues', 'fallout 3']
                                        'tag_date'  1934
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620388074.3610427  (2021-05-07 13:47:54)
                             'size'  2704355