======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '363'
                                          'artist'  'Loreena McKennitt'
                                     'text_people'  ''
                                         'release'  'Billboard Top Pop Singles of 1'
                                           'title'  'Mummers Dance'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-OLDST-3', 'Q-UNU-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['new age', 'celtic', 'female vocalists', 'ethereal', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '83'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;loc-unsorted;set-pl-billboard'
                                             'bpm'  '119.758'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            'Billboard'
'TALB' (Album/Movie/Show title)                     'Billboard Top Pop Singles of 1'
'TBPM' (BPM (beats per minute))                     '119.758'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'loc-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         'Mummers Dance'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Loreena McKennitt'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '83'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['new age', 'celtic', 'female vocalists', 'ethereal', 'folk']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.536991'

========================== row from database ==========================
                                              'id'  1338522
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/Billboard Top100/1998/083 - Loreena Mckennitt - Mummers Dance.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  363
                                           'genre'  electronic-generic or radio-unsorted;loc-unsorted;set-pl-billboard
                                        'filesize'  5821042
                                           'mtime'  1620385213
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Top100 1998 083 Mckennitt electronic generic radio unsorted;loc unsorted;set pl billboard
                                      'tag_artist'  Loreena McKennitt
                                     'tag_release'  Billboard Top Pop Singles of 1
                                       'tag_title'  Mummers Dance
                                             'bpm'  119.758
                                    'search_title'  'dance':2 'mummers':1
                                   'search_artist'  'kennitt':4 'loreena':1 'mc':3 'mckennitt':2
                                  'search_release'  '1':6 'billboard':1 'of':5 'pop':3 'singles':4 'top':2
                                     'search_rest'  '00poprockelectronic':1 '1998':3 'billboard':17 'electronic':5 'generic':6 'loc':9,11 'mckennitt':4 'pl':16 'radio':7 'set':13,15 'top100':2 'unsorted':8,10,12,14
                                    'search_combo'  '00poprockelectronic':13 '1':12C '1998':15 'billboard':7C,29 'dance':2A 'electronic':17 'generic':18 'kennitt':6B 'loc':21,23 'loreena':3B 'mc':5B 'mckennitt':4B,16 'mummers':1A 'of':11C 'pl':28 'pop':9C 'radio':19 'set':25,27 'singles':10C 'top':8C 'top100':14 'unsorted':20,22,24,26
                                    'tag_tracknum'  83
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['new age', 'celtic', 'female vocalists', 'ethereal', 'folk']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385213.4637942  (2021-05-07 13:00:13)
                             'size'  5821042