======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '136'
                                          'artist'  'Andrews Sisters'
                                     'text_people'  ''
                                         'release'  'Decca 24769'
                                           'title'  "Merry Christmas At Grandmother's House (+ Danny Kaye)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swing', 'jazz', 'female vocalists', 'oldies', '40s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1948'
                                        'comments'  ''
                                           'genre'  'prerock-swing;set-th-christmas'
                                             'bpm'  '127.444'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Decca 24769'
'TBPM' (BPM (beats per minute))                     '127.444'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-swing', 'set-th-christmas']
'TDRC' (Recording time)                             '1948'
'TIT2' (Title/songname/content description)         "Merry Christmas At Grandmother's House (+ Danny Kaye)"
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Andrews Sisters'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['swing', 'jazz', 'female vocalists', 'oldies', '40s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.27 dB'
'TXXX:replaygain_track_peak'                        '0.474898'

========================== row from database ==========================
                                              'id'  1513252
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1948/Andrews Sisters - Merry Christmas At Grandmother_s House (+ Danny Kaye) 1948.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  136
                                           'genre'  prerock-swing;set-th-christmas
                                        'filesize'  2735922
                                           'mtime'  1674646562
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1948 Grandmother_s 1948 prerock swing;set christmas
                                      'tag_artist'  Andrews Sisters
                                     'tag_release'  Decca 24769
                                       'tag_title'  Merry Christmas At Grandmother's House (+ Danny Kaye)
                                             'bpm'  127.444
                                    'search_title'  'at':3 'christmas':2 'danny':8 'grandmother':4 'grandmothers':6 'house':7 'kaye':9,10 'merry':1 's':5
                                   'search_artist'  'andrews':1 'sisters':2
                                  'search_release'  '24769':2 'decca':1
                                     'search_rest'  '00oldiepop':5 '1948':6 'christmas':14 'country':4 'exotica':2 'grandmother':7 'jazz':1 'oldies':3 'prerock':9 's':8 'set':11,13 'swing':10,12
                                    'search_combo'  '00oldiepop':19 '1948':20 '24769':14C 'andrews':11B 'at':3A 'christmas':2A,28 'country':18 'danny':8A 'decca':13C 'exotica':16 'grandmother':4A,21 'grandmothers':6A 'house':7A 'jazz':15 'kaye':9A,10A 'merry':1A 'oldies':17 'prerock':23 's':5A,22 'set':25,27 'sisters':12B 'swing':24,26
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['swing', 'jazz', 'female vocalists', 'oldies', '40s']
                                        'tag_date'  1948
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1674646561.9549985  (2023-01-25 12:36:01)
                             'size'  2735922