======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '152'
                                          'artist'  'Van & Schenck'
                                     'text_people'  ''
                                         'release'  'Billboard 1928'
                                           'title'  'Is She My Girl Friend?'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vaudeville', 'all', '20s', 'ragtime', 'usa']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '112'
                                      'tracktotal'  ''
                                            'date'  '1928'
                                        'comments'  ''
                                           'genre'  'prerock-ragtime'
                                             'bpm'  '89.691'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Debuted 1928 and peaked at #10 on Various Charts. Source: Pop Memories'
'COMM:ID3v1 Comment:XXX'                            'Debuted 1928 and peaked at #'
'TALB' (Album/Movie/Show title)                     'Billboard 1928'
'TBPM' (BPM (beats per minute))                     '89.691'
'TCON' (Content type, a.k.a. Genre)                 'prerock-ragtime'
'TDRC' (Recording time)                             '1928'
'TIT2' (Title/songname/content description)         'Is She My Girl Friend?'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Van & Schenck'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '112'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['vaudeville', 'all', '20s', 'ragtime', 'usa']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                        '+2.87 dB'
'TXXX:replaygain_track_peak'                        '0.475466'

========================== row from database ==========================
                                              'id'  978069
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Billboard 1928/1928_112 - Van & Schenck - Is She My Girl Friend_ 128 M (2.32).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  152
                                           'genre'  prerock-ragtime
                                        'filesize'  2438290
                                           'mtime'  1620527275
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1928_112 Friend_ 128 (2.32) prerock ragtime
                                      'tag_artist'  Van & Schenck
                                     'tag_release'  Billboard 1928
                                       'tag_title'  Is She My Girl Friend?
                                             'bpm'  89.691
                                    'search_title'  'friend':5 'girl':4 'is':1 'my':3 'she':2
                                   'search_artist'  'schenck':2 'van':1
                                  'search_release'  '1928':2 'billboard':1
                                     'search_rest'  '112':6 '128':8 '1928':5 '2':9 '232':11 '32':10 'country':4 'exotica':2 'friend':7 'jazz':1 'oldies':3 'prerock':12 'ragtime':13
                                    'search_combo'  '112':15 '128':17 '1928':9C,14 '2':18 '232':20 '32':19 'billboard':8C 'country':13 'exotica':11 'friend':5A,16 'girl':4A 'is':1A 'jazz':10 'my':3A 'oldies':12 'prerock':21 'ragtime':22 'schenck':7B 'she':2A 'van':6B
                                    'tag_tracknum'  112
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['vaudeville', 'all', '20s', 'ragtime', 'usa']
                                        'tag_date'  1928
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527275.1722322  (2021-05-09 04:27:55)
                             'size'  2438290