======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '205'
                                          'artist'  'Anne-Marie'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Alarm'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', "
 "'q-other-2', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'rnb', 'british', 'electronic', 'female vocalists']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio'
                                             'bpm'  '97.835'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '97.835'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Alarm'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Anne-Marie'
'TPE2' (Band/orchestra/accompaniment)               'Anne-Marie'
'TPOS' (Part of a set)                              '1/2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['pop', 'rnb', 'british', 'electronic', 'female vocalists']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '-0.61 dB'
'TXXX:replaygain_track_peak'                        '0.392666'

========================== row from database ==========================
                                              'id'  1333273
                                            'path'  /data/Music/Bulk/00poprockelectronic/2016/Anne-Marie - Alarm.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  205
                                           'genre'  electronic-generic or radio
                                        'filesize'  8251248
                                           'mtime'  1630243347
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2016 electronic generic or radio
                                      'tag_artist'  Anne-Marie
                                     'tag_release'  None
                                       'tag_title'  Alarm
                                             'bpm'  97.835
                                    'search_title'  'alarm':1
                                   'search_artist'  'anne':1 'annemarie':3 'marie':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '2016':2 'electronic':3 'generic':4 'or':5 'radio':6
                                    'search_combo'  '00poprockelectronic':5 '2016':6 'alarm':1A 'anne':2B 'annemarie':4B 'electronic':7 'generic':8 'marie':3B 'or':9 'radio':10
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'rnb', 'british', 'electronic', 'female vocalists']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630243346.859285  (2021-08-29 15:22:26)
                             'size'  8251248