======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '231'
                                          'artist'  'Twins'
                                     'text_people'  ''
                                         'release'  'Face The Beat: Session 6'
                                           'title'  'The Signal'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-SYN-3', 'Q-BUSY-3', 'Q-GRIT-3', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['chinese', 'c-pop', 'cpop', 'cantopop', 'twins', 'cantonese']"
                                     'discogstags'  "['pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '130'
                                      'tracktotal'  ''
                                            'date'  '2020'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '118.2'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:cover'                                        type PictureType.COVER_FRONT (Cover (front)) b'cover'
                                     
'TALB' (Album/Movie/Show title)                     'Face The Beat: Session 6'
'TBPM' (BPM (beats per minute))                     '118.2'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDRC' (Recording time)                             '2020'
'TIT2' (Title/songname/content description)         'The Signal'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Twins'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '130'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['pop', 'rock']
'TXXX:lastfmtags'                                   ['chinese', 'c-pop', 'cpop', 'cantopop', 'twins', 'cantonese']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.75 dB'
'TXXX:replaygain_track_peak'                        '0.486139'

========================== row from database ==========================
                                              'id'  1489280
                                            'path'  /data/Music/Bulk/00dwimp/VA - 2020 - Face The Beat - Session 6/1.130. Twins - The Signal.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  231
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  9418884
                                           'mtime'  1620296792
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp VA 2020 1.130. eid ebm or industrial or darkwave
                                      'tag_artist'  Twins
                                     'tag_release'  Face The Beat: Session 6
                                       'tag_title'  The Signal
                                             'bpm'  118.2
                                    'search_title'  'signal':2 'the':1
                                   'search_artist'  'twins':1
                                  'search_release'  '6':6 'beat':3,4 'face':1 'session':5 'the':2
                                     'search_rest'  '00dwimp':1 '1':4 '1130':6 '130':5 '2020':3 'darkwave':11 'ebm':8 'eid':7 'industrial':10 'or':9 'va':2
                                    'search_combo'  '00dwimp':10 '1':13 '1130':15 '130':14 '2020':12 '6':9C 'beat':6C,7C 'darkwave':20 'ebm':17 'eid':16 'face':4C 'industrial':19 'or':18 'session':8C 'signal':2A 'the':1A,5C 'twins':3B 'va':11
                                    'tag_tracknum'  130
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-1', 'Q-GRIT-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-3', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-1', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['chinese', 'c-pop', 'cpop', 'cantopop', 'twins', 'cantonese']
                                        'tag_date'  2020
                                     'discogstags'  ['pop', 'rock']

============================== file details ==============================
                                           'mtime'  1620296792.0900104  (2021-05-06 12:26:32)
                             'size'  9418884