======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '144'
                                          'artist'  'Walter Brennan'
                                     'text_people'  ''
                                         'release'  'Mama Sang a Song'
                                           'title'  'Houdini'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lynn', '1894 07 25', 'massachusetts', 'dead', '1974 09 21']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '11'
                                            'date'  '1962'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country-classic'
                                             'bpm'  '128.089'
                                             'key'  '11A'
                                        'acoustid'  '96885bee-b76e-4502-aa3c-8de1e0755c63'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Mama Sang a Song'
'TBPM' (BPM (beats per minute))                     '128.089'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country-classic'
'TDRC' (Recording time)                             '1962'
'TIT2' (Title/songname/content description)         'Houdini'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Walter Brennan'
'TPE2' (Band/orchestra/accompaniment)               'Walter Brennan'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '7/11'
'TSO2'                                              'Brennan, Walter'
'TSOP' (Performer sort order)                       'Brennan, Walter'
'TXXX:Acoustid Id'                                  '96885bee-b76e-4502-aa3c-8de1e0755c63'
'TXXX:MusicBrainz Album Artist Id'                  'dd0b7e58-7ad4-4726-afc6-38dc40667004'
'TXXX:MusicBrainz Album Id'                         '6de99e98-19fc-4987-810b-36094e6f5ff0'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'dd0b7e58-7ad4-4726-afc6-38dc40667004'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['lynn', '1894 07 25', 'massachusetts', 'dead', '1974 09 21']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.09 dB'
'TXXX:replaygain_track_peak'                        '0.593859'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'90c8d2e5-5b84-4522-b298-ec3560e87b38')

========================== row from database ==========================
                                              'id'  1266379
                                            'path'  /data/Music/Bulk/00localcharacter/Walter Brennan - Momma sang a song - 1962/Walter Brennan - Momma sang a song - 07 - Houdini.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  144
                                           'genre'  loc-namerica-country-classic
                                        'filesize'  4054172
                                           'mtime'  1621629895
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Momma sang song 1962 Momma sang song 07 loc namerica country classic
                                      'tag_artist'  Walter Brennan
                                     'tag_release'  Mama Sang a Song
                                       'tag_title'  Houdini
                                             'bpm'  128.089
                                    'search_title'  'houdini':1
                                   'search_artist'  'brennan':2 'walter':1
                                  'search_release'  'a':3 'mama':1 'sang':2 'song':4
                                     'search_rest'  '1962':4 'classic':8 'country':7 'loc':5 'momma':1 'namerica':6 'sang':2 'song':3
                                    'search_combo'  '1962':11 'a':6C 'brennan':3B 'classic':15 'country':14 'houdini':1A 'loc':12 'mama':4C 'momma':8 'namerica':13 'sang':5C,9 'song':7C,10 'walter':2B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['lynn', '1894 07 25', 'massachusetts', 'dead', '1974 09 21']
                                        'tag_date'  1962
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629895.071407  (2021-05-21 22:44:55)
                             'size'  4054172