======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '170'
                                          'artist'  'Gene Autry'
                                     'text_people'  ''
                                         'release'  'Whitburn Christmas - 1950'
                                           'title'  'Frosty The Snowman'
                                           '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'  ("['classic country', 'oldies', 'country', 'early country', 'male vocalists', "
 "'christmas']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1950'
                                        'comments'  ''
                                           'genre'  'prerock-vocal;set-th-christmas'
                                             'bpm'  '87.483'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Whitburn Christmas - 1950'
'TBPM' (BPM (beats per minute))                     '87.483'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-vocal', 'set-th-christmas']
'TDRC' (Recording time)                             '1950'
'TIT2' (Title/songname/content description)         'Frosty The Snowman'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Gene Autry'
'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'                                   ['classic country',
 'oldies',
 'country',
 'early country',
 'male vocalists',
 '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'                        '+1.29 dB'
'TXXX:replaygain_track_peak'                        '0.581392'

========================== row from database ==========================
                                              'id'  1426537
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1950/frosty the snowman - gene autry.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  170
                                           'genre'  prerock-vocal;set-th-christmas
                                        'filesize'  3411840
                                           'mtime'  1621625630
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop frosty the snowman gene autry prerock vocal;set th christmas
                                      'tag_artist'  Gene Autry
                                     'tag_release'  Whitburn Christmas - 1950
                                       'tag_title'  Frosty The Snowman
                                             'bpm'  87.483
                                    'search_title'  'frosty':1 'snowman':3 'the':2
                                   'search_artist'  'autry':2 'gene':1
                                  'search_release'  '1950':3 'christmas':2 'whitburn':1
                                     'search_rest'  '00oldiepop':5 'autry':10 'christmas':17 'country':4 'exotica':2 'frosty':6 'gene':9 'jazz':1 'oldies':3 'prerock':11 'set':13,15 'snowman':8 'th':16 'the':7 'vocal':12,14
                                    'search_combo'  '00oldiepop':13 '1950':8C 'autry':5B,18 'christmas':7C,25 'country':12 'exotica':10 'frosty':1A,14 'gene':4B,17 'jazz':9 'oldies':11 'prerock':19 'set':21,23 'snowman':3A,16 'th':24 'the':2A,15 'vocal':20,22 'whitburn':6C
                                    '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-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['classic country', 'oldies', 'country', 'early country', 'male vocalists', 'christmas']
                                        'tag_date'  1950
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625630.182802  (2021-05-21 21:33:50)
                             'size'  3411840