======================== unified (from filesystem) ========================
                                         'bitrate'  '32.0'
                                        'duration'  '130'
                                          'artist'  'Tales of the Vienna Woods'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "French's Champion Canaries"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness;mi-whistling'
                                             'bpm'  '144.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '144.2'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-oddness', 'mi-whistling']
'TENC' (Encoded by)                                 'Basic Hip Digital Oddio'
'TIT2' (Title/songname/content description)         "French's Champion Canaries"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tales of the Vienna Woods'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+3.47 dB'
'TXXX:replaygain_track_peak'                        '0.328536'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://www.whistlingrecords.com')

========================== row from database ==========================
                                              'id'  1504269
                                            'path'  /data/Music/Bulk/00spent/Whistling/Tales of the Vienna Woods - French_s Champion Canaries.mp3
                                         'working'  None
                                         'bitrate'  32
                                    'duration_sec'  130
                                           'genre'  electronic-experimental-oddness;mi-whistling
                                        'filesize'  522240
                                           'mtime'  1620528051
                                   'redo_metaread'  0
                                        'rest_str'   00spent Whistling French_s electronic experimental oddness;mi whistling
                                      'tag_artist'  Tales of the Vienna Woods
                                     'tag_release'  None
                                       'tag_title'  French's Champion Canaries
                                             'bpm'  144.2
                                    'search_title'  'canaries':5 'champion':4 'french':1 'frenchs':3 's':2
                                   'search_artist'  'of':2 'tales':1 'the':3 'vienna':4 'woods':5
                                  'search_release'  
                                     'search_rest'  '00spent':1 'electronic':5 'experimental':6 'french':3 'mi':8,10 'oddness':7,9 's':4 'whistling':2
                                    'search_combo'  '00spent':11 'canaries':5A 'champion':4A 'electronic':15 'experimental':16 'french':1A,13 'frenchs':3A 'mi':18,20 'oddness':17,19 'of':7B 's':2A,14 'tales':6B 'the':8B 'vienna':9B 'whistling':12 'woods':10B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528050.9647558  (2021-05-09 04:40:50)
                             'size'  522240