======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '344'
                                          'artist'  'Kid606'
                                     'text_people'  ''
                                         'release'  'Down with the Scene'
                                           'title'  'My Kitten'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['breakcore', 'electronica', 'glitch', 'idm', 'electronic', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '119.9'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Down with the Scene'
'TBPM' (BPM (beats per minute))                     '119.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'My Kitten'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kid606'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['breakcore', 'electronica', 'glitch', 'idm', 'electronic', 'experimental']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.369252'

========================== row from database ==========================
                                              'id'  982526
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Kid606/Kid606 - 2000 - Down With The Scene (320 from lossless)/15 My Kitten.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  344
                                           'genre'  electronic-experimental
                                        'filesize'  13802212
                                           'mtime'  1622658697
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2000 With The (320 from lossless) 15 electronic experimental
                                      'tag_artist'  Kid606
                                     'tag_release'  Down with the Scene
                                       'tag_title'  My Kitten
                                             'bpm'  119.9
                                    'search_title'  'kitten':2 'my':1
                                   'search_artist'  'kid606':1
                                  'search_release'  'down':1 'scene':4 'the':3 'with':2
                                     'search_rest'  '2000':1 '320':4,5 'electronic':9 'experimental':10 'from':6 'lossless':7,8 'the':3 'with':2
                                    'search_combo'  '2000':8 '320':11,12 'down':4C 'electronic':16 'experimental':17 'from':13 'kid606':3B 'kitten':2A 'lossless':14,15 'my':1A 'scene':7C 'the':6C,10 'with':5C,9
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['breakcore', 'electronica', 'glitch', 'idm', 'electronic', 'experimental']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1622658697.3796  (2021-06-02 20:31:37)
                             'size'  13802212