======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '150'
                                          'artist'  'Dolly Parton'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Walking In A Winter Wonder Land '
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'bluegrass', 'female vocalists', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '00'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '120.1'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'COMM:MusicMatch_Tempo:eng'                         'None'
'PCNT' (Play counter)                               PCNT(count=0)
'TBPM' (BPM (beats per minute))                     '120.1'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TIT2' (Title/songname/content description)         'Walking In A Winter Wonder Land '
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '150000'
'TPE1' (Lead performer(s)/Soloist(s))               'Dolly Parton'
'TRCK' (Track number/Position in set)               '00'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'bluegrass', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.04 dB'
'TXXX:replaygain_track_peak'                        '0.706617'

========================== row from database ==========================
                                              'id'  1354700
                                            'path'  /data/Music/Bulk/00poprockelectronic/Dolly Parton/Dolly Parton - Walking In A Winter Wonder Land.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  150
                                           'genre'  ifs-songwriter
                                        'filesize'  2410368
                                           'mtime'  1637330721
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic ifs songwriter
                                      'tag_artist'  Dolly Parton
                                     'tag_release'  None
                                       'tag_title'  Walking In A Winter Wonder Land 
                                             'bpm'  120.1
                                    'search_title'  'a':3 'in':2 'land':6 'walking':1 'winter':4 'wonder':5
                                   'search_artist'  'dolly':1 'parton':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'ifs':2 'songwriter':3
                                    'search_combo'  '00poprockelectronic':9 'a':3A 'dolly':7B 'ifs':10 'in':2A 'land':6A 'parton':8B 'songwriter':11 'walking':1A 'winter':4A 'wonder':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['country', 'bluegrass', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330720.5303721  (2021-11-19 15:05:20)
                             'size'  2410368