======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '168'
                                          'artist'  'Crests'
                                     'text_people'  'Alicia Evelyn'
                                         'release'  'The Very Best of the Crests: Sixteen Candles'
                                           'title'  'Six Nights A Week'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['50s rock n roll', 'pop', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '84.632'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-183 POS 28'
'COMM:ID3v1 Comment:XXX'                            '59-183 POS 28'
'TALB' (Album/Movie/Show title)                     'The Very Best of the Crests: Sixteen Candles'
'TBPM' (BPM (beats per minute))                     '84.632'
'TCOM' (Composer)                                   'Alicia Evelyn'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'Six Nights A Week'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Crests'
'TRCK' (Track number/Position in set)               '4'
'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'                                   ['50s rock n roll', 'pop', 'oldies']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+0.72 dB'
'TXXX:replaygain_track_peak'                        '0.611907'

========================== row from database ==========================
                                              'id'  1441613
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-183 - Crests - Six Nights A Week.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  168
                                           'genre'  prerock-unsorted
                                        'filesize'  6753755
                                           'mtime'  1621698405
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 183 prerock unsorted
                                      'tag_artist'  Crests
                                     'tag_release'  The Very Best of the Crests: Sixteen Candles
                                       'tag_title'  Six Nights A Week
                                             'bpm'  84.632
                                    'search_title'  'a':3 'nights':2 'six':1 'week':4
                                   'search_artist'  'crests':1
                                  'search_release'  'best':3 'candles':8 'crests':5,6 'of':4 'sixteen':7 'the':1 'very':2
                                     'search_rest'  '00oldiepop':5 '183':8 '1959':6 '59':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':18 '183':21 '1959':19 '59':20 'a':3A 'best':8C 'candles':13C 'country':17 'crests':5B,10C,11C 'exotica':15 'jazz':14 'nights':2A 'of':9C 'oldies':16 'prerock':22 'six':1A 'sixteen':12C 'the':6C 'unsorted':23 'very':7C 'week':4A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  7B
                                           '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-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['50s rock n roll', 'pop', 'oldies']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698405.3369153  (2021-05-22 17:46:45)
                             'size'  6753755