======================== unified (from filesystem) ========================
                                         'bitrate'  '248.308'
                                        'duration'  '63'
                                          'artist'  'Lucifer'
                                     'text_people'  ''
                                         'release'  'Black Mass'
                                           'title'  'ESP'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['death metal', 'hard rock', 'doom metal', 'psychedelic rock', 'occult rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '139.2'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'vinyl rip'
'TALB' (Album/Movie/Show title)                     'Black Mass'
'TBPM' (BPM (beats per minute))                     '139.2'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '1971'
'TIT2' (Title/songname/content description)         'ESP'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Lucifer'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['death metal', 'hard rock', 'doom metal', 'psychedelic rock', 'occult rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.87 dB'
'TXXX:replaygain_track_peak'                        '0.560769'

========================== row from database ==========================
                                              'id'  734517
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/lucifer (aka mort garson) - black mass (1971)/10_esp.mp3
                                         'working'  None
                                         'bitrate'  248
                                    'duration_sec'  63
                                           'genre'  eid-metal-death
                                        'filesize'  1961856
                                           'mtime'  1620302132
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm lucifer (aka mort garson) black mass (1971) 10_esp eid metal death
                                      'tag_artist'  Lucifer
                                     'tag_release'  Black Mass
                                       'tag_title'  ESP
                                             'bpm'  139.2
                                    'search_title'  'esp':1
                                   'search_artist'  'lucifer':1
                                  'search_release'  'black':1 'mass':2
                                     'search_rest'  '10':11 '1971':9,10 'aka':2,3 'black':7 'death':15 'eid':13 'esp':12 'garson':5,6 'lucifer':1 'mass':8 'metal':14 'mort':4
                                    'search_combo'  '10':15 '1971':13,14 'aka':6,7 'black':3C,11 'death':19 'eid':17 'esp':1A,16 'garson':9,10 'lucifer':2B,5 'mass':4C,12 'metal':18 'mort':8
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-1', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['death metal', 'hard rock', 'doom metal', 'psychedelic rock', 'occult rock']
                                        'tag_date'  1971
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302132.4739592  (2021-05-06 13:55:32)
                             'size'  1961856