======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '142'
                                          'artist'  'Sly and the Family Stone / Sly and the Family Stone / Sly and the Family Stone'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-4', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul-funk'
                                             'bpm'  '114.350'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'e:\\Anthology\\Sly and the Fam'
'COMM:MusicMatch_Path:XXX'                          'e:\\Anthology\\Sly and the Family Stone-Everyday People.mp3'
'COMM:MusicMatch_Serial:XXX'                        '289BC7C'
'TBPM' (BPM (beats per minute))                     '114.350'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '142000'
'TPE1' (Lead performer(s)/Soloist(s))               'Sly and the Family Stone / Sly and the Family Stone / Sly and the Family Stone'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Mp3gain_minmax'                               '000,194'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '4'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:album'                                        'Anthology'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.27 dB'
'TXXX:replaygain_track_peak'                        '0.508784'
'TXXX:title'                                        'Everyday People'

========================== row from database ==========================
                                              'id'  785352
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Sly and the Family Stone/Sly and the Family Stone - Everyday People.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  142
                                           'genre'  funk or soul-funk
                                        'filesize'  2286429
                                           'mtime'  1620665554
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Everyday People funk or soul funk
                                      'tag_artist'  Sly and the Family Stone / Sly and the Family Stone / Sly and the Family Stone
                                     'tag_release'  None
                                       'tag_title'  Everyday People
                                             'bpm'  114.35
                                    'search_title'  'everyday':1 'people':2
                                   'search_artist'  'and':2 'family':4 'sly':1 'stone':5 'the':3
                                  'search_release'  
                                     'search_rest'  'country':4 'everyday':5 'exotica':2 'funk':7 'jazz':1 'oldies':3 'or':8 'people':6 'soul':9
                                    'search_combo'  'and':2B 'country':9 'everyday':10 'exotica':7 'family':4B 'funk':12 'jazz':6 'oldies':8 'or':13 'people':11 'sly':1B 'soul':14 'stone':5B 'the':3B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-4', 'q-busy-3', 'q-drums-2', 'q-piano-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620665553.780496  (2021-05-10 18:52:33)
                             'size'  2286429