======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '185'
                                          'artist'  'Digital Farm Animals'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Millionaire'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['dubstep', 'dub', 'electro', 'british', 'electronic']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '100.058'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '100.058'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Millionaire'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Digital Farm Animals & Cash Cash feat. Nelly'
'TPE2' (Band/orchestra/accompaniment)               'Digital Farm Animals'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['dubstep', 'dub', 'electro', 'british', 'electronic']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.47 dB'
'TXXX:replaygain_track_peak'                        '0.381525'

========================== row from database ==========================
                                              'id'  1284077
                                            'path'  /data/Music/Bulk/00poprockelectronic/2016/Digital Farm Animals & Cash Cash feat. Nelly - Millionaire.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  185
                                           'genre'  electronic-unsorted
                                        'filesize'  7413662
                                           'mtime'  1620566227
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2016 & Cash Cash feat. Nelly electronic unsorted
                                      'tag_artist'  Digital Farm Animals
                                     'tag_release'  None
                                       'tag_title'  Millionaire
                                             'bpm'  100.058
                                    'search_title'  'millionaire':1
                                   'search_artist'  'animals':3 'digital':1 'farm':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '2016':2 'cash':3 'electronic':7 'feat':4,5 'nelly':6 'unsorted':8
                                    'search_combo'  '00poprockelectronic':5 '2016':6 'animals':4B 'cash':7 'digital':2B 'electronic':11 'farm':3B 'feat':8,9 'millionaire':1A 'nelly':10 'unsorted':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dubstep', 'dub', 'electro', 'british', 'electronic']
                                        'tag_date'  2016
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1620566226.8428369  (2021-05-09 15:17:06)
                             'size'  7413662