======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '167'
                                          'artist'  'Clara Rockmore'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Summertime(George Gershwin)'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-1', 'q-drums-1', 'q-other-2', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['contemporary classical', 'theremin', 'electronic', 'early electronic', "
 "'classical']")
                                     'discogstags'  "['electronic', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '16'
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-cover or covered;set-pl-mor'
                                             'bpm'  '145.895'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '145.895'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-cover or covered', 'set-pl-mor']
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Summertime(George Gershwin)'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Clara Rockmore'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13/16'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'classical']
'TXXX:lastfmtags'                                   ['contemporary classical',
 'theremin',
 'electronic',
 'early electronic',
 'classical']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.35 dB'
'TXXX:replaygain_track_peak'                        '0.482119'

========================== row from database ==========================
                                              'id'  949406
                                            'path'  /data/Music/Bulk/sns/Clara Rockmore -  Summertime(George Gershwin).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  167
                                           'genre'  set-pl-shirleyspinoza;set-cover or covered;set-pl-mor
                                        'filesize'  5356317
                                           'mtime'  1647277233
                                   'redo_metaread'  0
                                        'rest_str'   sns set pl shirleyspinoza;set cover covered;set pl
                                      'tag_artist'  Clara Rockmore
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Summertime(George Gershwin)
                                             'bpm'  145.895
                                    'search_title'  'george':2 'gershwin':4,5 'summertime':1 'summertimegeorge':3
                                   'search_artist'  'clara':1 'rockmore':2
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'cover':8 'covered':9,11 'pl':3 'set':2,5,7,10,12 'shirleyspinoza':4,6 'sns':1
                                    'search_combo'  'clara':6B 'cover':17 'covered':18,20 'george':2A 'gershwin':4A,5A 'pl':12 'rockmore':7B 'set':11,14,16,19,21 'shirley':8C 'shirleyspinoza':13,15 'sns':10 'spinoza':9C 'summertime':1A 'summertimegeorge':3A
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'Q-PIANO-3', 'q-chart-1', 'q-drums-1', 'q-other-2', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['contemporary classical', 'theremin', 'electronic', 'early electronic', 'classical']
                                        'tag_date'  1975
                                     'discogstags'  ['electronic', 'classical']

============================== file details ==============================
                                           'mtime'  1647277232.9679065  (2022-03-14 18:00:32)
                             'size'  5356317