======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '122'
                                          'artist'  'Gene Autry & The Cass County Boys'
                                     'text_people'  ''
                                         'release'  'Whitburn Christmas - 1950'
                                           'title'  'Frosty The Snow Man'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', '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'  "['christmas']"
                                     'discogstags'  "['country', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1950'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;set-th-christmas'
                                             'bpm'  '84.491'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Whitburn Christmas - 1950'
'TBPM' (BPM (beats per minute))                     '84.491'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'set-th-christmas']
'TDRC' (Recording time)                             '1950'
'TIT2' (Title/songname/content description)         'Frosty The Snow Man'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gene Autry & The Cass County Boys'
'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:discogstags'                                  ['country', 'folk, world, & country']
'TXXX:lastfmtags'                                   'christmas'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'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'                        '+1.81 dB'
'TXXX:replaygain_track_peak'                        '0.688100'

========================== row from database ==========================
                                              'id'  1436679
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1950/frosty the snow man - gene autry and the cass county boys.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  122
                                           'genre'  prerock-vocal;set-th-christmas
                                        'filesize'  2450462
                                           'mtime'  1621625630
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop frosty the snow man gene autry and the cass county boys prerock vocal;set th christmas
                                      'tag_artist'  Gene Autry & The Cass County Boys
                                     'tag_release'  Whitburn Christmas - 1950
                                       'tag_title'  Frosty The Snow Man
                                             'bpm'  84.491
                                    'search_title'  'frosty':1 'man':4 'snow':3 'the':2
                                   'search_artist'  'autry':2 'boys':6 'cass':4 'county':5 'gene':1 'the':3
                                  'search_release'  '1950':3 'christmas':2 'whitburn':1
                                     'search_rest'  '00oldiepop':5 'and':12 'autry':11 'boys':15 'cass':13 'christmas':22 'country':4 'county':14 'exotica':2 'frosty':6 'gene':10 'jazz':1 'man':9 'oldies':3 'prerock':16 'set':18,20 'snow':8 'th':21 'the':7 'vocal':17,19
                                    'search_combo'  '00oldiepop':18 '1950':13C 'and':25 'autry':6B,24 'boys':10B,28 'cass':8B,26 'christmas':12C,35 'country':17 'county':9B,27 'exotica':15 'frosty':1A,19 'gene':5B,23 'jazz':14 'man':4A,22 'oldies':16 'prerock':29 'set':31,33 'snow':3A,21 'th':34 'the':2A,7B,20 'vocal':30,32 'whitburn':11C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['christmas']
                                        'tag_date'  1950
                                     'discogstags'  ['country', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621625630.1412008  (2021-05-21 21:33:50)
                             'size'  2450462