======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '104'
                                          'artist'  'Spotnicks'
                                     'text_people'  ''
                                         'release'  'The Spotnicks In France'
                                           'title'  'Blue Blue Day'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'surf', '60s', 'guitar', 'ed-hits']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1964'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '102.7'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Spotnicks In France'
'TBPM' (BPM (beats per minute))                     '102.7'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDRC' (Recording time)                             '1964'
'TIT2' (Title/songname/content description)         'Blue Blue Day'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '0'
'TPE1' (Lead performer(s)/Soloist(s))               'Spotnicks'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'surf', '60s', 'guitar', 'ed-hits']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.52 dB'
'TXXX:replaygain_track_peak'                        '0.479673'

========================== row from database ==========================
                                              'id'  328836
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Spotnicks-1962-1990-23 cd/The Spotnicks-1964-In France/Spotnicks - Blue Blue Day.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  104
                                           'genre'  rock-pop-surf
                                        'filesize'  1676570
                                           'mtime'  1620736587
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1962 1990 23 cd 1964 rock pop surf
                                      'tag_artist'  Spotnicks
                                     'tag_release'  The Spotnicks In France
                                       'tag_title'  Blue Blue Day
                                             'bpm'  102.7
                                    'search_title'  'blue':1 'day':2
                                   'search_artist'  'spotnicks':1
                                  'search_release'  'france':4 'in':3 'spotnicks':2 'the':1
                                     'search_rest'  '1962':1 '1964':5 '1990':2 '23':3 'cd':4 'pop':7 'rock':6 'surf':8
                                    'search_combo'  '1962':8 '1964':12 '1990':9 '23':10 'blue':1A 'cd':11 'day':2A 'france':7C 'in':6C 'pop':14 'rock':13 'spotnicks':3B,5C 'surf':15 'the':4C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'surf', '60s', 'guitar', 'ed-hits']
                                        'tag_date'  1964
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736586.5308666  (2021-05-11 14:36:26)
                             'size'  1676570