======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '149'
                                          'artist'  'Louis Jordan'
                                     'text_people'  ''
                                         'release'  'Fallout 4 OST (Diamond radio station)'
                                           'title'  "Keep A Knockin'"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['saxophone', 'blues', 'jazz', 'rhythm and blues', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '22'
                                      'tracktotal'  '38'
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'soundtrack-game'
                                             'bpm'  '146.000'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Fallout 4 OST (Diamond radio station)'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-game'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         "Keep A Knockin'"
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Louis Jordan'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '22/38'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf53.30.100'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['saxophone', 'blues', 'jazz', 'rhythm and blues', 'swing']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.94 dB'
'TXXX:replaygain_track_peak'                        '0.525978'

========================== row from database ==========================
                                              'id'  1513129
                                            'path'  /data/Music/Bulk/0soundtrack/Fallout 4 - Diamond City Radio/22. Louis Jordan - Keep A Knockin_.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  149
                                           'genre'  soundtrack-game
                                        'filesize'  2398667
                                           'mtime'  1623433163
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack City Radio 22. Knockin_ soundtrack game
                                      'tag_artist'  Louis Jordan
                                     'tag_release'  Fallout 4 OST (Diamond radio station)
                                       'tag_title'  Keep A Knockin'
                                             'bpm'  146.0
                                    'search_title'  'a':2 'keep':1 'knockin':3,4
                                   'search_artist'  'jordan':2 'louis':1
                                  'search_release'  '4':2 'diamond':4,5 'fallout':1 'ost':3 'radio':6 'station':7,8
                                     'search_rest'  '0soundtrack':1 '22':4,5 'city':2 'game':8 'knockin':6 'radio':3 'soundtrack':7
                                    'search_combo'  '0soundtrack':15 '22':18,19 '4':8C 'a':2A 'city':16 'diamond':10C,11C 'fallout':7C 'game':22 'jordan':6B 'keep':1A 'knockin':3A,4A,20 'louis':5B 'ost':9C 'radio':12C,17 'soundtrack':21 'station':13C,14C
                                    'tag_tracknum'  22
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['saxophone', 'blues', 'jazz', 'rhythm and blues', 'swing']
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1623433162.9488604  (2021-06-11 19:39:22)
                             'size'  2398667