======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '148'
                                          'artist'  'Jimmy Reed'
                                     'text_people'  ''
                                         'release'  '18 Greatest Hits'
                                           'title'  'Down In Virginia'
                                           'quals'  ("['Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['harmonica blues', 'blues', 'rhythm and blues', 'classic blues', 'harmonica']"
                                     'discogstags'  "['blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '110.967'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
'COMM::eng'                                         '58-490 POS 93'
'COMM:ID3v1 Comment:XXX'                            '58-490 POS 93'
'TALB' (Album/Movie/Show title)                     '18 Greatest Hits'
'TBPM' (BPM (beats per minute))                     '110.967'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'Down In Virginia'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '148819'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmy Reed'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'blues'
'TXXX:lastfmtags'                                   ['harmonica blues', 'blues', 'rhythm and blues', 'classic blues', 'harmonica']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                        '+1.63 dB'
'TXXX:replaygain_track_peak'                        '0.589837'

========================== row from database ==========================
                                              'id'  1444310
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-490 - Jimmy Reed - Down In Virginia.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  148
                                           'genre'  prerock-unsorted
                                        'filesize'  5969168
                                           'mtime'  1620387775
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 490 prerock unsorted
                                      'tag_artist'  Jimmy Reed
                                     'tag_release'  18 Greatest Hits
                                       'tag_title'  Down In Virginia
                                             'bpm'  110.967
                                    'search_title'  'down':1 'in':2 'virginia':3
                                   'search_artist'  'jimmy':1 'reed':2
                                  'search_release'  '18':1 'greatest':2 'hits':3
                                     'search_rest'  '00oldiepop':5 '1958':6 '490':8 '58':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':13 '18':6C '1958':14 '490':16 '58':15 'country':12 'down':1A 'exotica':10 'greatest':7C 'hits':8C 'in':2A 'jazz':9 'jimmy':4B 'oldies':11 'prerock':17 'reed':5B 'unsorted':18 'virginia':3A
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  8A
                                           '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-3', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['harmonica blues', 'blues', 'rhythm and blues', 'classic blues', 'harmonica']
                                        'tag_date'  1958
                                     'discogstags'  ['blues']

============================== file details ==============================
                                           'mtime'  1620387774.8258538  (2021-05-07 13:42:54)
                             'size'  5969168