======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '163'
                                          'artist'  'Perry Como'
                                     'text_people'  ''
                                         'release'  'The Definitive Perry Como Collection (1)'
                                           'title'  'Mandolins In The Moonlight'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-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-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'male vocalists', 'jazz', '50s', 'easy listening', 'christmas']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-easy'
                                             'bpm'  '122.437'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-314 POS 47'
'COMM:ID3v1 Comment:XXX'                            '58-314 POS 47'
'TALB' (Album/Movie/Show title)                     'The Definitive Perry Como Collection (1)'
'TBPM' (BPM (beats per minute))                     '122.437'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-easy'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Mandolins In The Moonlight'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Perry Como'
'TRCK' (Track number/Position in set)               '16'
'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'                                   ['oldies', 'male vocalists', 'jazz', '50s', 'easy listening', 'christmas']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '-0.29 dB'
'TXXX:replaygain_track_peak'                        '0.507592'

========================== row from database ==========================
                                              'id'  1428054
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-314 - Perry Como - Mandolins In The Moonlight.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  163
                                           'genre'  prerock-vocal-easy
                                        'filesize'  6557696
                                           'mtime'  1621625787
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 314 prerock vocal easy
                                      'tag_artist'  Perry Como
                                     'tag_release'  The Definitive Perry Como Collection (1)
                                       'tag_title'  Mandolins In The Moonlight
                                             'bpm'  122.437
                                    'search_title'  'in':2 'mandolins':1 'moonlight':4 'the':3
                                   'search_artist'  'como':2 'perry':1
                                  'search_release'  '1':6,7 'collection':5 'como':4 'definitive':2 'perry':3 'the':1
                                     'search_rest'  '00oldiepop':5 '1958':6 '314':8 '58':7 'country':4 'easy':11 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':18 '1':12C,13C '1958':19 '314':21 '58':20 'collection':11C 'como':6B,10C 'country':17 'definitive':8C 'easy':24 'exotica':15 'in':2A 'jazz':14 'mandolins':1A 'moonlight':4A 'oldies':16 'perry':5B,9C 'prerock':22 'the':3A,7C 'vocal':23
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  6A
                                           '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-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'male vocalists', 'jazz', '50s', 'easy listening', 'christmas']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625787.4072459  (2021-05-21 21:36:27)
                             'size'  6557696