======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '173'
                                          'artist'  'Frances'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Say It Again'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'indie pop', 'female vocalists', 'british', 'pop']"
                                     'discogstags'  "['jazz', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '84.140'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '84.140'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Say It Again'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frances'
'TPE2' (Band/orchestra/accompaniment)               'Frances'
'TSSE' (Software/Hardware and settings used for encoding)  'Lame 399.5'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'easy listening']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'female vocalists', 'british', 'pop']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.48 dB'
'TXXX:replaygain_track_peak'                        '0.416284'

========================== row from database ==========================
                                              'id'  1343581
                                            'path'  /data/Music/Bulk/00poprockelectronic/2016/Frances - Say It Again.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  173
                                           'genre'  ifs-songwriter
                                        'filesize'  7022746
                                           'mtime'  1637330711
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2016 ifs songwriter
                                      'tag_artist'  Frances
                                     'tag_release'  None
                                       'tag_title'  Say It Again
                                             'bpm'  84.14
                                    'search_title'  'again':3 'it':2 'say':1
                                   'search_artist'  'frances':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '2016':2 'ifs':3 'songwriter':4
                                    'search_combo'  '00poprockelectronic':5 '2016':6 'again':3A 'frances':4B 'ifs':7 'it':2A 'say':1A 'songwriter':8
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           '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-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'female vocalists', 'british', 'pop']
                                        'tag_date'  2016
                                     'discogstags'  ['jazz', 'easy listening']

============================== file details ==============================
                                           'mtime'  1637330711.4559531  (2021-11-19 15:05:11)
                             'size'  7022746