======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '188'
                                          'artist'  'Gene Autry & The Pinafores'
                                     'text_people'  ''
                                         'release'  'Whitburn Christmas - 1950'
                                           'title'  'Rudolph, The Red'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['christmas']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1950'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;set-th-christmas'
                                             'bpm'  '142.108'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Whitburn Christmas - 1950'
'TBPM' (BPM (beats per minute))                     '142.108'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'set-th-christmas']
'TDRC' (Recording time)                             '1950'
'TIT2' (Title/songname/content description)         'Rudolph, The Red'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gene Autry & The Pinafores'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'christmas'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.12 dB'
'TXXX:replaygain_track_peak'                        '0.489354'

========================== row from database ==========================
                                              'id'  1439815
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1950/rudolph, the red-nosed reindeer - gene autry and the pinafores.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  188
                                           'genre'  prerock-vocal;set-th-christmas
                                        'filesize'  3016516
                                           'mtime'  1621625630
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop rudolph, the red nosed reindeer gene autry and the pinafores prerock vocal;set th christmas
                                      'tag_artist'  Gene Autry & The Pinafores
                                     'tag_release'  Whitburn Christmas - 1950
                                       'tag_title'  Rudolph, The Red
                                             'bpm'  142.108
                                    'search_title'  'red':4 'rudolph':1,2 'the':3
                                   'search_artist'  'autry':2 'gene':1 'pinafores':4 'the':3
                                  'search_release'  '1950':3 'christmas':2 'whitburn':1
                                     'search_rest'  '00oldiepop':5 'and':14 'autry':13 'christmas':22 'country':4 'exotica':2 'gene':12 'jazz':1 'nosed':10 'oldies':3 'pinafores':15 'prerock':16 'red':9 'reindeer':11 'rudolph':6,7 'set':18,20 'th':21 'the':8 'vocal':17,19
                                    'search_combo'  '00oldiepop':16 '1950':11C 'and':25 'autry':6B,24 'christmas':10C,33 'country':15 'exotica':13 'gene':5B,23 'jazz':12 'nosed':21 'oldies':14 'pinafores':8B,26 'prerock':27 'red':4A,20 'reindeer':22 'rudolph':1A,2A,17,18 'set':29,31 'th':32 'the':3A,7B,19 'vocal':28,30 'whitburn':9C
                                    '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-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['christmas']
                                        'tag_date'  1950
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625630.3737528  (2021-05-21 21:33:50)
                             'size'  3016516